Alexander ....

Taken from the NetApp System Configuration Guide .... http://now.netapp.com/NOW/knowledge/docs/hardware/NetApp/syscfg/scdot705/ind ex.htm

The FAS270 is defined as the head-shelf and not as an expansion shelf. It must only have FC-AL drives. It is possible for FAS270 to be without any FC-AL drives when connecting to DS14mk2 AT expansion disk shelves as long as it has two load boards (PN: X3247-R5).

Caution 1: Do not connect your FAS270 or FAS270c to ESH modules.

Caution 2: While both types of disk shelves can connect to the filer, if there is an existing DiskShelf14mk2 FC connected to the FAS270/FAS270c, then any additional expansion shelf must be a DiskShelf14mk2 FC. If however, you do not have an expansion shelf connected to the FAS270/FAS270c, then you can choose to connect to a loop of DiskShelf14mk2 AT or a loop of DiskShelf14mk2 FC, but not both. The FAS270/FAS270c does not support both types of disk shelves on the same loop.

Caution 3: The FAS270 and FAS270c function at a 1 Gb loop speed. Before connecting a DS14mk2 AT to your appliance, change the loop speed in the AT-FCX module because an incorrectly set loop speed results in an open loop condition. Labels within the AT-FCX module identify how to change the jumper settings. For more information see the DiskShelf14mk2 AT Hardware Guide.

Caution 4: If you decide to upgrade your system to a different platform and choose to convert the FAS270 head-shelf into an expansion shelf, you cannot replace the head modules with the AT-FCX modules.

The following table shows the expansion disk shelves and disk drives supported on the FAS270.

Disk shelf Disk drives1, 2, 3 Standard power supply/optional RPS Notes DiskShelf14mk2 FC 36-GB Fibre Channel (PN: X270A or X271) 72-GB Fibre Channel (PN: X272A or X273 144-GB Fibre Channel (PN: X274A/X275)4 300-GB Fibre Channel (PN: X276A)

Maximum of 14 per shelf DS14mk2 FC is available with LRC (Loop Redundancy Circuit) modules AC power supply: 110/220V PN: X511A

DC power supply: PN: X512A-R5

Two power supplies per shelf required. Up to three Fibre Channel DiskShelf14mk2 FC shelves are supported in any orderable configuration.

Empty shelves: With AC power supplies: PN: X550 Without power supplies: PN: X551 Rack mount kit: PN: 5509A

Copper LRC module PN: X5501A Optical LRC module PN: X5502A

ESH2 module PN: X5511A Optical SFP PN: X6529

ESH4 module PN: X5512A-R5 Optical SFP PN: X6539

FC SFP-to-SFP Patch Cable PN: X6530 FC SFP-to-HSSDC2 Patch Cable PN: X6531

DiskShelf14mk4 FC 36-GB Fibre Channel (PN: X270A/X271) 72-GB Fibre Channel (PN: X272A/X273) 144-GB Fibre Channel (PN: X274A/X274B/X275) 300-GB Fibre Channel (PN: X276A)

Maximum of 14 per shelf AC power supply: 110/220V PN: X511A

DC power supply: PN: X512A-R5

Two power supplies per shelf required. Fibre Channel DiskShelf14mk4 FC shelves are available in any orderable configurations. Empty shelves: With AC power supplies: PN: X553A With DC power supplies: PN: X553A-DC

Rack mount kit: PN: 5509A ESH4 module PN: X5512A-R5 Optical SFP PN: X6539 FC SFP-to-SFP Patch Cable PN: X6530 FC SFP-to-HSSDC2 Patch Cable PN: X6531

Note: The maximum number of disk shelves per loop is six and the first shelf in the loop must have optical modules.

Note: Systems with more than two loops (112 disks) must also include a system cabinet.

DiskShelf14mk2 AT PN with 250-GB drives: FAS-ATA-3.5TB-QS-C PN with 320-GB drives: FAS-ATA-4.5TB-QS-C PN with 500-GB drives: DSX-7.0TB-QS 250-GB ATA (PN: X262B-R5) 320-GB ATA (PN: X266B-R5) 500-GB ATA (PN: X267A-R5)

Maximum of 14 per shelf AC power supply: 110/220V PN: X511A

DC power supply: PN: X512A-R5

Two power supplies per shelf required. Up to three DiskShelf14mk2 AT shelves are supported in any orderable configuration.

AT-FCX module PN: X5612A-R5 Rack mount kit: PN: 5509A Optical SFP PN: X6529 FC SFP-to-SFP Patch Cable PN: X6530

1 The minimum number of drives for a expansion shelf connecting to the FAS270/FAS270c is two FC-AL drives or five ATA drives. 2 Each number is a multiple of the number of disks supported and the size of the disk. It does not indicate storage size. 3 X271, X273, and X275 are 15,000 RPM drives. See technical report TR3285 for information about using these drives with other drives in the same appliance.

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-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Alexander Schalek Sent: Friday, 16 March 2007 6:56 PM To: toasters@mathworks.com Subject: FAS270: DOT on SATA disks possible?

Hi,

I have a question regarding SATA drives in a FAS270. Is it possible to use a FAS270 with just 14x500GB SATA drives in an expansion shelf and run ontap on the sata disks? Or do I need 3 FC Disks as well for ontap?

thanks in advance, Alexander

-- Mit freundlichen Grüssen | Kind regards, -- Alexander Schalek

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