It sounds like you might be interested to read up on Eric Schrock's work. I
read today about some of the stuff he's been doing to bring integrated fault
management to Solaris:
http://blogs.sun.com/eschrock/entry/external_storage_enclosures_in_solaris
His last paragraph is great to see, Sun really do seem to be headed in the
right direction:
"I often like to joke about the amount of time that I have spent just getting a
single LED to light. At first glance, it seems like a pretty simple task. But
to do it in a generic fashion that can be generalized across a wide variety of
platforms, correlated with physically meaningful labels, and incorporate a
diverse set of diagnoses (ZFS, SCSI, HBA, etc) requires an awful lot of work.
Once it's all said and done, however, future platforms will require little to
no integration work, and you'll be able to see a bad drive generate checksum
errors in ZFS, resulting in a FMA diagnosis indicating the faulty drive,
activate a hot spare, and light the fault LED on the drive bay (wherever it may
be). Only then will we have accomplished our goal of an end-to-end storage
strategy for Solaris - and hopefully someone besides me will know what it has
taken to get that little LED to light."
Ross
> Date: Tue, 15 Jul 2008 12:51:22 -0500> From: [EMAIL PROTECTED]> To: [EMAIL
> PROTECTED]> CC: zfs-discuss@opensolaris.org> Subject: Re: [zfs-discuss] J4500
> device renumbering> > On Tue, 15 Jul 2008, Ross wrote:> > > Well I haven't
> used a J4500, but when we had an x4500 (Thumper) on > > loan they had Solaris
> pretty well integrated with the hardware. > > When a disk failed, I used
> cfgadm to offline it and as soon as I did > > that a bright blue "Ready to
> Remove" LED lit up on the drive tray of > > the faulty disk, right next to
> the handle you need to lift to remove > > the drive.> > That sure sounds a
> whole lot easier to manage than my setup with a > StorageTek 2540 and each
> drive as a LUN. The 2540 could detect a > failed drive by itself and turn an
> LED on, but if ZFS decides that a > drive has failed and the 2540 does not,
> then I will have to use the > 2540's CAM administrative interface and
> manually set the drive out of > service. I very much doubt that cfgadm will
> communicate with the 2540 > and tell it to do anything.> > A little while
> back I created this table so I could understand how > things were mapped:> >
> Disk Volume LUN WWN Device ZFS> ====== ======= ===
> ===============================================
> ===================================== ===> t85d01 Disk-01 0
> 60:0A:0B:80:00:3A:8A:0B:00:00:09:61:47:B4:51:BE
> c4t600A0B80003A8A0B0000096147B451BEd0 P3-A> t85d02 Disk-02 1
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:9C:47:B4:52:2D
> c4t600A0B800039C9B500000A9C47B4522Dd0 P6-A> t85d03 Disk-03 2
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:A0:47:B4:52:9B
> c4t600A0B800039C9B500000AA047B4529Bd0 P1-B> t85d04 Disk-04 3
> 60:0A:0B:80:00:3A:8A:0B:00:00:09:66:47:B4:53:CE
> c4t600A0B80003A8A0B0000096647B453CEd0 P4-A> t85d05 Disk-05 4
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:A4:47:B4:54:4F
> c4t600A0B800039C9B500000AA447B4544Fd0 P2-B> t85d06 Disk-06 5
> 60:0A:0B:80:00:3A:8A:0B:00:00:09:6A:47:B4:55:9E
> c4t600A0B80003A8A0B0000096A47B4559Ed0 P1-A> t85d07 Disk-07 6
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:A8:47:B4:56:05
> c4t600A0B800039C9B500000AA847B45605d0 P3-B> t85d08 Disk-08 7
> 60:0A:0B:80:00:3A:8A:0B:00:00:09:6E:47:B4:56:DA
> c4t600A0B80003A8A0B0000096E47B456DAd0 P2-A> t85d09 Disk-09 8
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:AC:47:B4:57:39
> c4t600A0B800039C9B500000AAC47B45739d0 P4-B> t85d10 Disk-10 9
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:B0:47:B4:57:AD
> c4t600A0B800039C9B500000AB047B457ADd0 P5-B> t85d11 Disk-11 10
> 60:0A:0B:80:00:3A:8A:0B:00:00:09:73:47:B4:57:D4
> c4t600A0B80003A8A0B0000097347B457D4d0 P5-A> t85d12 Disk-12 11
> 60:0A:0B:80:00:39:C9:B5:00:00:0A:B4:47:B4:59:5F
> c4t600A0B800039C9B500000AB447B4595Fd0 P6-B> > When I selected the drive
> pairings, it was based on a dump from a > multipath utility and it seems that
> on a chassis level there is no > rhyme or reason for the zfs mirror
> pairings.> > This is an area where traditional RAID hardware makes ZFS more >
> difficult to use.> > Bob
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