On Fri, Jan 06, 2012 at 09:37:27AM -0800, Don Elmore wrote:
Apologies if this has been asked before.
We have a DS14MK4 shelf with 144G FC disks and 2 ESH4 modules that's no longer in production. I've heard of people using these shelves as direct-attached storage (no filer head, just directly cabled to a host), but I haven't been able to pull up any details after searching online. I figure if anybody has tried something this silly, they're probably on this mailing list :)
Has anybody been able to get this to work? Any tips/tricks?
That works very nice. I have a FreeBSD box with 4 NetApp shelves and ZFS. You have to reformat the disks to 512 bytes/sector. If you connect both loops, some software has to do something clever (I did not). I did not use DS14MK4, but DS14FC-X, but I am sure that is very similar.
(And if you reformat them to 520 b/s, OnTap accepts the disks again.)
dmesg excerpt:
FC controllers mpt0 and mpt1 as mpt0: <Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter> port 0x3000-0x30ff mem 0xdd210000-0xdd21ffff,0xdd200000-0xdd20ffff irq 24 at device 1.0 on pci5 mpt0: [ITHREAD] mpt0: MPI Version=1.2.9.0 mpt0: mpt_read_cfg_header: Config Info Status 20
then ses0..ses3 as ses0 at mpt0 bus 0 scbus0 target 0 lun 0 ses0: <ARIODATA SANARIO-FST 0208> Fixed Enclosure Services SCSI-4 device ses0: 100.000MB/s transfers ses0: SCSI-3 SES Device
then da0..da55 da0 at mpt0 bus 0 scbus0 target 2 lun 0 da0: <Maxtor ST3320630NS AD 3QZ> Fixed Direct Access SCSI-4 device da0: 100.000MB/s transfers da0: Command Queueing enabled da0: 308857MB (632541135 512 byte sectors: 255H 63S/T 39373C)
Grtnx,