Storage-system hardware. Bull a DAS Installation (Fibre Channel Environments)

5

Storage-system hardware

The products described in this chapter compose the storage component of storage systems. The storage systems attach to the server and the interconnect components described in Chapter 1.

Shared storage - with switch

Server Server Server

Unshared storage

With hub

Server Server

Direct

Server

Server component

Interconnect component

Storage component

Switch

Hub

Disk-array storage systems

Topics in this chapter are

• Hardware for shared storage

• Hardware for unshared storage

• Planning your hardware components

• Component data sheets

• Cabinets for rackmount enclosures

• Cable and configuration guidelines

• Component planning worksheets

Hardware for shared storage

The primary hardware component for shared storage is a ten-slot

Disk-array Processor Enclosure (DPE) with two storage processors (SP).

The DPE can support up to 11 separate 10-slot enclosures called Disk Array

Enclosures (DAEs) for a total of 120 disks. Shared storage requires two SPs and LIC of a specific model.

A DPE with a DAE is available as a deskside system, but with a capacity of

20 disks this cannot provide the expandibility and total storage capacity needed for a SAN (storage area network). So this section does not cover the deskside version.

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Hardware for shared storage

Storage hardware — rackmount DPE-based storage systems

The DPE rackmount enclosure is a sheet-metal housing with a front door, a midplane, and slots for the storage processors (SPs), link control cards

(LCCs), disk modules, power supplies, and fan packs. All components can be replaced under power. The DPE rackmount model looks like the following figure.

DPE storage-system components – rackmount model

Power supplies

LCC

5-2

Link control card (LCC)

Disk modules (front door removed for clarity)

Storage processors (SPs)

FC ports with GBICs

Drive fan module

(detached for clarity)

A separate standby power supply (SPS) is required to support write caching.

All the shared storage components — rackmount DPE, DAEs, SPSs, and cabinet — are shown in the following figure.

Rackmount system with DPE and DAEs

Front view Back view

DAE

DAE

DPE

SPSs

SPs

Disks

The disks — available in differing capacities — fit into slots in the enclosure. Each module has a unique ID that you use when binding or

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Hardware for shared storage monitoring its operation. The ID is derived from the enclosure address

(always 0 for the DPE, settable on a DAE) and the disk module slot numbers.

Disk modules and module IDs — rackmount DPE-based system

10 11 12 13 14 15 16 17 18 19

0 1 2 3 4 5 6 7 8 9

Storage processor (SP)

The SP provides the intelligence of the storage system. Using its own operating system (called Licensed Internal Code), the SP processes the data written to or read from the disk modules, and monitors the modules themselves. An SP consists of a printed-circuit board with memory modules

(DIMMs), and status lights.

For high availability, a storage system can support a second SP. The second

SP provides a second route to a storage system and also lets the storage system use write caching for enhanced write performance. Two SPs are required for shared storage.

Shared storage systems

Server Server Server

Fibre Channel switch

SP A SP B

Fibre Channel switch

SP A SP B

Storage systems

There are more examples of shared storage in Chapter 3.

5-3

Hardware for unshared storage

Hardware for unshared storage

Unshared storage systems are less costly and less complex than shared storage systems. They offer many shared storage system features; for example, you can use multiple unshared storage systems with multiple servers. However, with multiple servers, unshared storage offers less flexibility and security than shared storage, since any user with write access to privileged server files can enable access to any storage system.

Types of storage system for unshared storage

For unshared storage, there are four types of storage system, each using the

FC-AL protocol. Each type is available in a rackmount or deskside (office) version.

•

Disk-array Processor Enclosure (DPE) storage systems. A DPE is a

10-slot enclosure with hardware RAID features provided by one or two storage processors (SPs). In addition to its own disks, a DPE can support up to 110 additional disks in 10-slot Disk Array Enclosures (DAEs) for a total of 120 disks. This is the same kind of storage system used for shared storage, but it uses a different storage processor (SP).

•

Intelligent Disk Array Enclosure (iDAE). An iDAE, like a DPE, has SPs and thus all the features of a DPE, but is thinner and has a limit of 30 disks.

•

Disk Array Enclosure (DAE). A DAE does not have SPs. A DAE can connect to a DPE or an iDAE, or you can use it without SPs. A DAE used without an SP does not inherently include RAID, but can operate as a

RAID device using software running on the server system. Such a DAE is also known as Just a Box of Disks, or JBOD.

•

30-slot SCSI-disk storage systems. Like the DPE, these offer RAID features provided by one or two SPs. However, they use SCSI, not Fibre

Channel, disks. Each has space for 30 disks.

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Disk-array processor enclosure (DPE)

Deskside DPE with DAE

Rackmount DPE, one enclosure, supports up to 11 DAEs

30-slot deskside

Intelligent disk-array enclosure (iDAE)

10-slot deskside Rackmount

30-slot SCSI-disk storage system

Deskside Rackmount

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The following figure shows some components of a deskside DPE.

Components for the other types are similar.

DPE components – deskside model

Front

Back (fans and cables omitted for clarity)

Storage processors

(SPs)

DAE link control

card (LCC)

DPE LCC

FC ports

DAE power supplies

DPE power supplies

DPE

SP fan cover

(covers SP fan pack)

DAE

Front doors

(cover disk modules)

Power distribution

units

DPE LCC

SPS units

DAE LCC

Disks

The disks — available in differing capacities — fit into slots in the enclosure. Each disk has a unique ID that you use when binding it or monitoring its operation. The ID is the enclosure address (always 0 for the

DPE, settable on a DAE) and the disk slot number.

Disks and disk IDs in a full-fibre system

7

8

9

4

5

6

0

1

2

3

14

15

16

17

18

19

10

11

12

13

0 1 2 3 4 5 6 7 8 9

For a 30-slot system with SCSI disks, the disk IDs are based on the SCSI internal bus and the number of the disk on that bus, as follows:

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C2

D2

E2

A5

B5

C5

D5

E5

A2

B2

Disks and disk IDs in a 30-slot SCSI disk system

Deskside model Rackmount model

Internal bus A

Internal bus B

Internal bus C

Internal bus D

Internal bus E

A4

B4

C4

D4

E4

A1

B1

C1

D1

E1

A0

B0

C0

D0

E0

A3

B3

C3

D3

E3

Internal bus A

Internal bus B

Internal bus C

Internal bus D

Internal bus E

A0 B0 C0 D0 E0

A3 B3 C3 D3 E3

A1 B1 C1 D1 E1

A4 B4 C4 D4 E4

A2 B2 C2 D2 E2 A5 B5 C5 D5 E5

Storage processor (SP)

The SP provides the intelligence of the storage system. Using its own operating system (called Licensed Internal Code), the SP processes the data written to or read from the disk modules, and monitors the modules themselves. An SP consists of a printed-circuit board with memory modules

(DIMMs), status lights, and switches for setting FC-AL addresses.

For high availability, a storage system can support a second SP. A second SP provides a second route to a storage system, so both SPs can connect to the same server or two different servers, as follows.

Storage system with two SPs connected to the same server

Server

Cables

FC loop 1

FC loop 2

Storage system

DAE(s)

SP A SP B

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Planning your hardware components

Storage system with two SPs connected to different servers

Highly available cluster

Server 1 Server 2

Storage system

SP B SP A

FC loop 1

FC loop 2

Either SP can control any LUN in the storage system, but only one SP at a time can control a LUN. If one SP cannot access a LUN it controlled

(because of a failure), you can transfer control of the LUN to the other SP, manually or via software.

Storage-system caching provides significant performance enhancement.

Read caching is available with one or two SPs. Mirrored write caching, particularly helpful with RAID 5 I/O, requires two SPs (to mirror one another, for cache integrity) and a Standby Power Supply (SPS) to enable the SPs to write their cached data to disk if power fails.

Planning your hardware components

This section helps you plan the hardware components — adapters, cables and hubs, and storage systems and site requirements — for each server in your installation.

For shared storage, you must use a DPE rackmount system with two SPs and high-availability options. We assume you have some idea of how many servers, adapters, hubs, storage systems, and SPs you want. Skip to the component data sheets following.

For unshared storage, you can use one or two SPs and you can choose among storage system configurations. This section assumes you have examined the

configurations shown starting on page 4-1 and have some idea of how many

servers, adapters, hubs, storage systems, and SPs you want. It ends with blank worksheets and sample worksheets.

Configuration tradeoffs - shared storage

The hardware configuration required for shared storage is very specific: two host-bus adapters in each attached server, two Fibre Channel switches, and two SPs per storage system. Choices you can make with shared storage systems include the number of storage systems (up to 15 are allowed), and for each storage system the cache configuration (maximum or minimum), and one or two standby power supplies (SPS units).

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The number of storage systems in the SAN depends on the servers’ processing demands. For each system, the larger cache improves write performance for very large processing loads; the redundant SPS lets write caching continue if one SPS fails.

Configuration tradeoffs - unshared storage

For each storage-system enclosure, you have two important areas of choice: rackmount or deskside model, and high-availability options.

Generally, rackmount systems are more versatile; you can add capacity in a cabinet without consuming more floor space. However, rackmount systems require additional hardware, such as cabinets and mounting rails, and someone must connect power cords and cables within them. For large storage requirements, rackmount systems may be more economical than deskside systems. Deskside systems are more convenient; they ship with all internal cabling in place and require only ac power and connection to the servers.

For high availability, there are many variations. The most important high-availability features are a second SP/LCC pair, second power supply, and standby power supply (SPS). The second SP/LCC and SPS let you use write caching to enhance performance; the second SP provides continuous access to storage-system disks if one SP or LCC fails. Another high-availability option is a redundant SPS.

Yet another option, for a deskside system, is a second power distribution unit (PDU), which lets you route ac power from an independent source.

Used this way, the second PDU protects against failure in one of the two ac power sources. With a rackmount system, you can acquire a cabinet with one or two ac inlet cords. The second inlet cord, connected to a second ac power source, provides the same advantage for all storage systems in the cabinet as the second PDU in the deskside storage system.

For deskside systems, the optional high-availability hardware fits into the deskside cabinet. Deskside high-availability options are as follows.

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High-availability options, deskside unshared storage

Deskside system type HA level

DPE Minimum iDAE

DAE only

30-slot

SCSI-disk

Maximum 2

Minimum

Maximum 2

Minimum

Maximum 2

Minimum

PDUs SPs LCCs

1 1 1 DPE

1 DAE

1

1 n/a

Maximum n/a

2

1

2 n/a n/a

1

2

4 (2 DPE

2 DAE) n/a (10-slot)

2 (30-slot) n/a (10-slot)

4 (30-slot)

1

2 n/a n/a

Power supplies

1 DPE

1 DAE

4

(2 DPE

2 DAE)

1

2 (10-slot)

6 (30-slot)

1

2

1 (called a

VSC)

3 (called

VSCs)

Disks

5 (without write cache)

10 (write cache or

RAID 3)


5 (write cache or

RAID 3)

5 (write cache or

RAID 3)

No minimum

No minimum

5 (write cache or

RAID 3)

5 (write cache or

RAID 3)

SPS units


1 (write cache)

2


1 (write cache

2 n/a n/a


1 (write cache)

1

For rackmount systems, the standby power supply or supplies (SPS or BBU) must be placed in a tray directly beneath the storage system. Typically, any hubs in the cabinet mount at the top or bottom of the cabinet. Rackmount options are as follows.

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Hardware data sheets

Rackmount system type HA level

DPE Minimum iDAE

DAE only

30-slot

SCSI-disk

High-availability options, rackmount unshared storage

Minimum

Minimum

Minimum

SPs LCCs

1 1

Maximum 2

1

Maximum 2 n/a

Maximum n/a

1

Maximum 2

2 (DPE)

22 (with 11

DAEs) n/a (10-slot)

4 (with two

DAEs) n/a

1

2 n/a n/a

Power supplies

1

2 (DPE)

22 (with 11

DAEs)

1

2

1

2

1 (called a

VSC)

3 (called

VSCs)

Disks


SPS units


1 (write cache)

2 10 (write cache or

RAID 3)


5 (write cache or

RAID 3)

5 (write cache or

RAID 3)

No minimum

No minimum

5 (write cache or

RAID 3)

5 (write cache or

RAID 3)


1 (write cache

2 n/a n/a


1 (write cache)

1

Hardware data sheets

The hardware data sheets shown in this section provide the plant requirements, including dimensions (footprint), weight, power requirements, and cooling needs, for DPE, iDAE, DAE, and 30-slot SCSI disk systems. Sections on cabinets and cables follow the data sheets.

DPE data sheet

For shared storage, a rackmount DPE and one or more rackmount DAEs are required. For unshared storage, you can use a rackmount or deskside DPE and DAE(s). The DPE dimensions and requirements are shown in the following figure.

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DPE dimensions and requirements

Depth

74.7 cm

(30 in)

Deskside model

Width

52.1 cm

(20.6 in)

Depth

70 cm

(27.6 in)

Rackmount model

Width

44.5 cm

(17.5 in)

Height

68 cm

(26.8 in)

Height

28.6 cm

(11.3 in)

6.5 U

SPS mounting tray, height 4.44 cm

(1.75 in), 1 U; depth 69.9 cm

(27.5 in)

Weight (without packaging)

Maximum (max disks, SPs, LCCs, PSs): with 2 SPSs

Deskside

144 kg (316 lb)

165 kg (364 lb)

Rackmount

52 kg (115 lb)

74 kg (163 lb)

Power requirements

Voltage rating:

Current draw:

Power consumption:

100 V ac to 240 V ac –10%/+15%, single-phase, 47 Hz to 63 Hz; power supplies are auto-ranging

At 100 v ac input – Deskside DPE/DAE: 12.0 A;

Rackmount DPE: 8.0 A max

SPS: 1.0 A max per unit during charge

Deskside DPE/DAE: 1200 VA; Rackmount DPE: 800 VA max

SPS: 100 VA per unit during charge

Power cables (single or dual) ac inlet connector:

Deskside power cord:

IEC 320-C14 power inlet

USA:

Outside USA:

1.8 m (6.0 ft): NEMA 6-15P plug

Specific to country

Operating environment

Temperature:

Relative humidity:

Altitude:

10 o

C to 40 o

C (50 o

F to 104 o

Noncondensing, 20% to 80%

F)

40 o

C to 2,438 m (8,000 ft); 37 o

C to 3,050 m (10,000 ft)

Heat dissipation (max): Deskside DPE/DAE: 3931x10

3

J/hr (2730 BTU/hr) max estimated;

Air flow:

Rackmount DPE: 2520x10

3

Front to back

J/hr (2390 BTU/hr) max estimated

Service clearances

Front:

Back:

30.3 cm (1 ft)

60.6 cm (2 ft)

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iDAE data sheet

You can use a rackmount or deskside DPE and DAE(s) for unshared storage.

The iDAE dimensions and requirements are shown in the following figure.

Dimensions and requirements, iDAE

Deskside 30-slot model

Depth

74.7 cm

(30 in)

Width

52.1 cm

(20.6 in)

Deskside 10-slot model

Depth

74.7 cm

(30 in)

Width

25 cm

(9.8 in)

Rackmount model

Depth

63.3 cm

(24.9 in)

Width

44.5 cm

(17.5 in)

Height

68 cm

(26.8 in)

SPS mounting tray, height 4.44 cm

(1.75 in), 1 U; depth 69.9 cm

(27.5 in)

Height

15.4 cm

(6.1 in)

3.5 U

Weight (without packaging)

Maximum (max disks, SPs):


Voltage rating:

Current draw

Power consumption:

Deskside 30

144 kg (316 lb)

Deskside 10

60 kg (132 lb)

Rackmount

35.4 kg (78 lb)

100 V ac to 240 V ac +/- 10%, single-phase, 47 Hz to 63 Hz; power supplies are auto-ranging

At 100 v ac input – 30-slot 12.0 A; 10-slot: 4.0 A;

SPS: 1.0 A max per unit during charge

30-slot: 1200;10-slot: 400 VA;

SPS: 100 VA per unit during charge




USA:

Outside USA:

1.8 m (6.0 ft): NEMA 6-15P plug

Specific to country


Temperature:

Relative humidity:

10 o

C to 40 o

C (50 o

F to 104 o


F)

Altitude: 40 o

C to 2,438 m (8,000 ft); 37 o

C to 3,050 m (10,000 ft)

Heat dissipation (max): 30-slot: 4,233 KJ/hr (4,020 BTU/hr)

Air flow:

10-slot: 1,411 KJ/hr (1,340 BTU/hr)

Front to back


Front:

Back:

30.3 cm (1 ft)

60.6 cm (2 ft)

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DAE data sheet

The DAE storage-system dimensions and requirements are shown in the following figure.

Dimensions and requirements, DAE

Deskside 30-slot model Deskside 10-slot model

Depth

74.7 cm

(30 in)

Width

52.1 cm

(20.6 in)

Depth

74.7 cm

(30 in)

Width

25 cm

(9.8 in)

Rackmount model

Depth

63.3 cm

(24.9 in)

Width

44.5 cm

(17.5 in)

Height

68 cm

(26.8 in)

Height

15.4 cm

(6.1 in)

3.5 U

Weight(without packaging)

Maximum configuration

Deskside 30 Deskside 10

143.6 kg (316 lb) 60 kg (132 lb)

Rackmount

35.4 kg (78 lb)


Voltage rating:

Current draw:

Power consumption:

100 V ac to 240 V ac -10%/+15%, single-phase, 47 Hz to 63 Hz; power supplies are auto-ranging

At 100 V: 30-slot: 12 A; 10-slot 4 A max

30-slot: 1200 VA; 10-slot 400 VA per supply max




USA:

Outside USA:

1.8 m (6.0 ft): NEMA 6-15P plug

Specific to country


Temperature:

Relative humidity:

10 o

C to 40 o

C (50 o

F to 104 o


F)

Altitude: 40 o

C to 2,438 m (8,000 ft); 37 o

C to 3,050 m (10,000 ft)

Heat dissipation (max): 30-slot: 4,233 KJ/hr (4,020 BTU/hr)

10-slot: 1,411 KJ/hr (1,340 BTU/hr)


Front:

Back:

30.3 cm (1 ft)

60.6 cm (2 ft)

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014-002912-01


30-slot system with SCSI disks data sheet

The 30-slot disk-array storage system dimensions and requirements are shown in the following figure.

Dimensions and requirements, 30-slot SCSI-disk storage system

Rackmount model

Depth

Deskside model

76.2 cm

(30.0 in)

Width

48.9 cm

(19.3 in)

Depth

76.2 cm

(30.0 in)

Width

48.3 cm

(19 in)

Height

62.9 cm

(24.8 in)

Height

48.9 cm

(19.3 in)

11 U

Weight(without packaging)

Maximum configuration:


Voltage rating:

Current draw:

Power consumption:

Deskside

119 kg (261.5 lb)

Rackmount

98 kg (216 lb)

200 V ac to 240 V ac -10%/+15%, single-phase, 47 Hz to 63 Hz; power supplies are auto-ranging

At 5.0 maximum at 200 Vac input

1000 VA maximum (apparent)

Power cables (single or dual) ac inlet connector: IEC 320-C14 power inlet

Deskside power cord: USA: 1.8 m (6.0 ft): NEMA 6-15P plug

Outside USA:: Specific to country


Temperature: 10 o

C to 38 o

C (50 o

F to 100 o

F)

Relative humidity:

Altitude:


2,438 m (8,000 ft)

Heat dissipation (max): 300 BTU/hour

Air flow: Front to back


Front: 30.3 cm (1 ft)

Back: 60.6 cm (2 ft)

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Cabinets for rackmount enclosures

Cabinets for rackmount enclosures

Prewired 19-inch-wide cabinets, ready for installation, are available in the following dimensions to accept rackmount storage systems.

Vertical space Exterior dimensions Comments

173 cm or 68.25

in (39 NEMA units or U; one

U is 1.75 in)

Height: 192 cm (75.3 in)

Width: 65 cm (25.5 in)

Depth: 87 cm (34.25 in) plus service clearances, which are 90 cm (3 ft), 30 cm front and 60 cm back

Accepts combinations of:

DPEs at 6.5 U, iDAEs at 3.5 U,

SPS units at 1 U,

DAEs at 3.5 U each,

30-slot SCSI disk systems at 11 U

Switches or hubs at 1 U

Weight (empty): 134 kg (296 lb)

Requires 200–240 volts ac. Plug options include L6–30 or L7–30

(domestic) and IEC 309 30 A

(international).

Each power strip has 12 IEC-320

CIS outlets.

Filler panels of various sizes are available.

As an example, a rackmount storage system that supports 100 disk modules has the following requirements.

Category

Vertical cabinet space in NEMA units (U, one

U is 1.75 in)

Weight

Power

Cooling

Requirement

Bottom to top: One SPS (1 U), one DPE (6.5 U), and nine

DAEs (9*3.5 U equals 31.5 U) for a total of 39 U.

516 kg (1,137 lb) including the cabinet (134 kg), DPE (52 kg),

SPS (11 kg), and nine DAEs (9 * 35.4 kg equals 319 kg).

4,500 VA max, including the DPE (800 VA), SPS (100 VA), and nine DAEs (9 * 400 VA equals 3600 VA).

15,484 KJ/hour (14,700 BTU/hr), including the DPE (2,520

KJ/hr), SPS (265 KJ/hour, estimated), and nine DAEs (9*1,411

KJ/hr equals 12,699 KJ/hr).

Cable and configuration guidelines

We recommend that all copper-interconnected nodes be connected to a common ground grid. The common grid is not needed for optical interconnections.

Copper cable allows up to 30 meters (99 feet) between nodes or hubs. Optical cable allows significantly longer distances. This is a major advantage of optical cable. However, you can use optical cable from a server only if the server’s adapter supports optical cable; otherwise you must use copper. Not all adapters support optical cable.

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Cable and configuration guidelines

To connect a DPE to a DAE, you must use copper cable, whose maximum length is 10 meters (33 ft). So, the distance between a DPE and the DAEs it controls cannot exceed 10 meters (33 ft).

The HBAs and SPs used with shared storage systems require optical cable, as does the switch between the HBAs and SPs. An optical GBIC interface converter, which is required for optical cable, is included with each SP and

HBAs, but are not included with a switch; you must specifically order an optical GBIC for every switch port you will use.

The SPs used with unshared storage systems support copper cables and — with MIAs — optical cables. The hub itself supports copper, or with a MIA, optical. So you can use a copper cable or — with two MIAs per cable — optical cable between any hub and SP. For optical cable to work between an

HBA and hub or SP, the HBA must support optical cable.

Server

Switch or hub

Maximum distance:

Copper cable: 30 m

Optical cable:500 m or more

Maximum distance:

Copper cable: 30 m

Server

Storage system Storage system

You can use any existing FDDI, multimode, 62.5 micron cable with good connections to attach servers, hubs, and storage systems. These cables must be dedicated to storage-system I/O.

5-17

Cable and configuration guidelines

Cable sizes — Optical

Length

5 m (16.5 ft) or

10 m (33 ft)

50 m (164 ft)

Typical use

Within one room, connecting servers to storage systems (adapter must support optical cable) or connecting switches or hubs to storage systems

Within one building, connecting servers to storage systems (adapter must support optical cable) or connecting switches or hubs to storage systems

100 m (328 ft)

250 m (821 ft,.15 mi)

Within one complex, connecting servers to storage systems (adapter must support optical cable) or connecting switches or hubs to storage systems

500 m (1642 ft,.31 mi)

Optical cabling is 50 micron (maximum length is 500 m (1,650 ft) or

62.5 micron (maximum length is 300 m (985 ft). Both types are multimode, dual SC, and require a MIA on a DB-9 or hub connector. The minimum length is 2 m (6.8 ft).

The minimum bend radius is 3 cm (1.2 in).

Cable sizes — Copper

Length

0.3 m (1 ft), non-equalized

Typical use

Connecting DPE/DAE and DAE LCCs

1.0 m (3.3 ft), non-equalized Connecting a hub to an adjacent storage system

3 m (10 ft), non-equalized

5 m (16.5 ft), non-equalized

Connecting a hub to a storage system in the same cabinet, or daisy chaining from one cabinet to an adjacent cabinet

Connecting a hub in one rack to a storage system in another cabinet

10 (33 ft), non-equalized Connecting servers to hubs and/or storage systems

— maximum length for non-equalized copper cable, maximum length between LCCs

30 m (98.5 ft), equalized Connecting servers to hubs and/or storage systems

– maximum length for copper cable

Copper cabling is shielded, 75 ohm twin-axial, shield bonded to DB-9 plug connector shell (360 o

) FC-AL Standard, Revision 4.4 or higher.

Component planning diagrams and worksheets follow.

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014-002912-01

Hardware planning worksheets

Hardware planning worksheets

Following are worksheets to note the hardware components you want.

There are two types of configuration:

• Shared storage

• Unshared storage

Hardware for shared storage

Cable identifier — DPE-based system for shared storage

Server 1

A1 A1

Server n

. . .

An An

Switch 1 Switch 2

E2 E2

DAE

D1

E1 DAE

DPE

SP B SP A

Storage system 1

E1 D1

Dm

E2

E1

DAE

E2

E1 Dm

DAE

Path 1

Path 2

DPE

SP B SP A

Storage system m

The cable identifiers used above apply to shared and unshared storage systems. The worksheet applies to shared storage only.

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Hardware component worksheet for shared storage

Number of servers:____ Adapters in servers:____ Switches: 16-port:____8-port:____ GBICs (1 per port):___

Rackmount DPEs:_____SP/LCC pairs:_____PSs:_____SPSs:____ Rackmount cabinets:___

Rackmount DAEs:_____ LCCs:_____PSs:_____

Cables between server and switch - Cable A, optical only

Cable A

1,

Cable A

2,

Optical: Number:__ __ ...................................................... ..............Length________m or ft

Optical: Number:__ __ ...................................................... ..............Length________m or ft

Cable A n

,Optical: Number:__ __ ....................................................... ..............Length________m or ft

Cables between switches and storage systems - Cable D, copper or optical

Cable D

1,

Cable D

2,

Cable D m,

Optical:Number:_____ ...................................................... ..............Length________m or ft


Optical:Number:_____ ..................................................... ..............Length________m or ft

Cables between enclosures - Cable E, which connects LCCs; between a DPE LCC and a DAE LCC, Cable E must be copper; between DAE LCCs, it can be copper or optical.

Cable E

1

:Number:_____ V Copper V Optical (for DAE to DAE only).. ..............Length________m or ft

Cable E

2


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014-002912-01


Sample shared storage installation and worksheet

Highly available cluster

File Server Mail Server Database Server

Cable between switch and storage system - D1

Path 1

Path 2

Switch

DAE

DAE

DAE

DAE

DAE

DAE

DPE

SP B SP A

Storage system

Switch

Cable between server and switch - A2

= Cable between storage

systems or enclosures - E1

Hardware component worksheet for shared storage

Number of servers:__

3

_ Adapters in servers:__

6

_ Switches: 16-port:____8-port:__

2

__ GBICs (1 per port):_

6

__

Rackmount DPEs:__

1

___SP/LCC pairs:__

2

___PSs:___

2

__SPSs:__

2

__ Rackmount cabinets:_

1

__

Rackmount DAEs:__

6

___ LCCs:___

12

__PSs:___

12

__

Cables between server and switch - Cable A, optical only

Cable A

1,

Optical: Number:__

2

__ .................................................... ..............Length____

33

_m or ft

Cable A

2,

Optical: Number:__

4

__ .................................................... ..............Length__

1628

_m or ft

Cable A n

,Optical: Number:__ __ ....................................................... ..............Length________m or ft

Cables between switches and storage systems - Cable D, copper or optical

Cable D

1,

Optical:Number:__

2

___ ................................................... ..............Length____

33

__m or ft

Cable D

2,


Cable D m,

Optical:Number:_____ ..................................................... ..............Length________m or ft

Cables between enclosures - Cable E, which connects LCCs; between a DPE LCC and a DAE LCC, Cable E must be copper; between DAE LCCs, it can be copper or optical.

Cable E

1

:Number:__

12

___ V Copper V Optical(for DAE to DAE only) ..........Length____

1

___m or ft

Cable E

2


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5-21


Hardware for unshared storage

The cable identifiers used below and on the following worksheets apply to all types of unshared storage systems. So, if you want to plan a site with different types of systems, you can consolidate all your unshared storage component entries (from the different system types on a single worksheet).

Cable identifier — unshared full-fibre system without hubs

Server 1

A1 A1

Server 2

A2 A2

E2

E1

DAE

DAE iDAE/DPE

SP B SP A

E2

E1

FC loop 1

FC loop 2

Cable identifier — unshared full-fibre system with hubs

Server 1

A1 A1

Server n

. . .

An An

5-22

Hub 1

E2 E2

DAE

FC loop 1

FC loop 2

Dm

D1

E1 DAE iDAE/DPE

SP B SP A


E2

E1

DAE

DAE iDAE/DPE

SP B SP A

Storage system m

E1

E2

E1

D1

Dm

Hub 2

014-002912-01


Hardware component worksheet for unshared storage

Number of servers: Adapters in servers:_______ Hubs (copper):______ MIAs (copper to optical):_______

DPE-based and DAE-only storage systems:

Rackmount DPEs:_____SP/LCC pairs:_____

Rackmount iDAEs:_____SPs:_____

PSs:_____SPSs:____ Rackmount cabinets:___



Deskside DPEs:_____SP/ LCC pairs:_____DAE LCCs:____ DPE PSs:____ DAE PSs:____ SPSs:__

Deskside iDAEs:_____SPs:_____ DAE LCCs:____ PSs:____ SPSs:___

Deskside DAEs: 30-slot_____ 10-slot______ LCCs:_____ PSs:_____

30-slot SCSI-disk storage systems:

Rackmount:_______SPs:_______VSCs:_____BBUs:____Rackmount Cabinets:___

Deskside:_______SPs:_______ VSCs:_____BBUs:____

Cables between server and storage system or between server and hub - Cable A, copper or optical

Cable A

1

:Number:__ __ V Copper V Optical .................................. ..............Length________m or ft

Cable A

2

:Number:__ __ V Copper V Optical ................................... ..............Length________m or ft

Cable A n


Cables between hubs and storage systems - Cable D, copper or optical

Cable D

1

:Number:_____ V Copper V Optical..................................... ..............Length________m or ft

Cable D

2


Cable D m

:Number:_____ V Copper V Optical .................................... ..............Length________m or ft

Cables between storage systems or enclosures - Cable E, which connects LCCs or SP-LCC; between a DPE

LCC or iDAE SP and a DAE LCC, Cable E must be copper; between DAE LCCs, it can be copper or optical.

Cable E

1

:Number:_____ V Copper V Optical(DAE to DAE only)........ ..............Length________m or ft

Cable E

2

:Number:_____ V Copper V Optical(DAE to DAE only)........ ..............Length________m or ft

*Please specify all storage-system components you need, even though you will not need to order them separately, since most or all components will be included with the model of each system you order.

014-002912-01

5-23


Sample unshared deskside system — basic configuration

Server

DAE iDAE/DPE

SP A

FC loop 1

Sample component worksheet

Cable between server and storage system - A1

Cable between storage systems or enclosures - E1 - Included with deskside DPE

Component worksheet for any storage system

Number of servers:

1

Adapters in servers:___

1

___ Hubs (copper):______ MIAs (copper to optical):_____


Rackmount DPEs:_____SP/LCC pairs:_____...... PSs:_____SPSs:____ Rackmount cabinets:___

Rackmount iDAEs:__

1

___SPs:__

1

___ ............. PSs:___

1

__SPSs:____ Rackmount cabinets:__

1

_

Rackmount DAEs:___

1

__ LCCs:__

1

___PSs:__

1

___





Cable A

1

:Number:__

1

__ V Copper V Optical ................................. ..............Length___

10

_____m or ft

Cable A

2


Cable A n


Cables between hubs - Cable C, copper or optical (maximum 1 between hubs)

Cable C:Number:____ V Copper V Optical......................................... ..............Length________m or ft


Cable D

1


Cable D

2


Cable D m




Cable E

1

:Number:__

1

__ V Copper V Optical(DAE to DAE only)....... ..............Length__

1

_____m or ft

Cable E

2

:Number:_____ V Copper V Optical (DAE to DAE only)........ ..............Length________m or ft

*Please specify all storage-system components you need, even though you willl not need to order them separately, since most or all components will be included with the model of each system you order.

5-24

014-002912-01


Sample unshared deskside system

—

dual-adapter/dual-SP configuration

Server

Cables between server and storage system - A1

Cables between storage systems or enclosures - E1 - included with deskside DPE

LCC LCC LCC LCC LCC

Cables between storage systems or enclosures - E2

LCC LCC

Sample component worksheet

LCC LCC LCC

FC loop 1

FC loop 2

Number of servers:

Hardware component worksheet for unshared storage

1

Adapters in servers:__

2

_____ Hubs (copper):______ MIAs (copper to optical):_______


Rackmount DPEs:_____SP/LCC pairs:_____





Deskside DPEs:__

1

_SP/ LCC pairs:__

2

__DAE LCCs:__

2

__ DPE PSs:__

2

__ DAE PSs:__

2

__ SPSs:_

1

_

Deskside iDAEs:_____SPs:_____

Deskside DAEs: 30-slot__

DAE LCCs:____ PSs:____ SPSs:___

1

___ 10-slot______ LCCs:__

6

___ PSs:__

6

__


Cable A

1

:Number:_

2

_ __ V Copper V Optical ............................... ..............Length___

10

___m or ft

Cable A

2


Cable A n



Cable D

1


Cable D

2


Cable D m




Cable E

1

:Number:__

Cable E

2

:Number:__

6

___ V Copper V Optical(DAE to DAE only)..... ..............Length___

1

_____m or ft

2

___ V Copper V Optical(DAE to DAE only)..... ..............Length___

5

_____m or ft

014-002912-01

5-25


Sample unshared DPE-based system with hubs — two loops

Cable between server and hub - A1

Server 1



Server 2


Cable between hub and storage system - D1

Hub 1


FC loop 1

FC loop 2

Hub 2


DAE

DAE

DAE

DAE

DPE

SP B SP A




DAE

DAE

DAE

DAE

DPE

SP B SP A

= Cable between storage systems or enclosures - E1

5-26

014-002912-01

What next?

Sample component worksheet for DPE-based system with hubs — two loops

Component worksheet for any storage system

Number of servers:

2

Adapters in servers:___

4

____ Hubs:___

2

____ MIAs (optical to copper):_______


Rackmount DPEs:_____SP/LCC pairs:__

4

___ PSs:___

4

__SPSs:_

2

__ Rackmount cabinets:_

2

__


Rackmount DAEs:__

8

___


LCCs:__

16

_PSs:__

16

___




30-slot SCSI-disk storage systems:

Rackmount:_______SPs:_______VSCs:_____BBUs:____Rackmount Cabinets:___

Deskside:_______SPs:_______ VSCs:_____BBUs:____


Cable A

1

:Number:__

Cable A

2

:Number:__

2

__ V Copper V Optical ................................ ..............Length_

2 0

_____m or ft

2

__ V Copper V Optical................................. ..............Length_

10

_____m or ft

Cable A n



Cable D

1

:Number:__

Cable D

2

:Number:__

2

___ V Copper V Optical .................................. ..............Length__

20

____m or ft

2

___ V Copper V Optical .................................. ..............Length___

2 0

____m or ft

Cable D m




Cable E

1

:Number:_

16

__ V Copper V Optical(DAE to DAE only)....... ..............Length___

1

____m or ft

Cable E

2

:Number:_____ V Copper V Optical (DAE to DAE only)........ ..............Length________m or ft

Please specify all storage-system components you need, even though you will not need to order them separately, since most or all components will be included with the model of each system you order.

What next?

This chapter explained hardware components of shared and unshared storage systems. If you have completed the worksheets to your satisfaction, you are ready to consider ordering some of this equipment. Or you may want to read about storage management in the next chapter.

014-002912-01

5-27

Storage-system hardware. Bull a DAS Installation (Fibre Channel Environments)

Storage-system hardware

Hardware for shared storage

Storage hardware — rackmount DPE-based storage systems

Disks

Storage processor (SP)

Hardware for unshared storage

Types of storage system for unshared storage

Disks

Storage processor (SP)

Planning your hardware components

Configuration tradeoffs - shared storage

Configuration tradeoffs - unshared storage

Hardware data sheets

DPE data sheet

iDAE data sheet

DAE data sheet

30-slot system with SCSI disks data sheet

Cabinets for rackmount enclosures

Cable and configuration guidelines

Hardware planning worksheets

Hardware for shared storage

Cable identifier — DPE-based system for shared storage

Hardware component worksheet for shared storage

Sample shared storage installation and worksheet

Hardware component worksheet for shared storage

Hardware for unshared storage

Cable identifier — unshared full-fibre system without hubs

Cable identifier — unshared full-fibre system with hubs

Hardware component worksheet for unshared storage

Sample unshared deskside system — basic configuration

Sample component worksheet

Component worksheet for any storage system

Sample unshared deskside system

dual-adapter/dual-SP configuration

Sample component worksheet

Hardware component worksheet for unshared storage

Sample unshared DPE-based system with hubs — two loops

Sample component worksheet for DPE-based system with hubs — two loops

Component worksheet for any storage system

What next?

Related manuals

EMC

FC5300

Bull

DC SPS (Direct Current Standby Power Supply)

Bull

Planning a DAS

Bull

DAS 150

Bull

Escala - TOWER PL and S, E, T

Bull

Storage Area Network (SAN)

GRASS VALLEY

PRS 200 & PRS 200A

EMC

FC4400

EMC

TV DVD Combo FC4500

Dell

EMC Unity XT 380F

Bull

DAS 5300 Rackmount Models

Bull

DAS 5300 Deskside Models

Table of contents