OSX Lion with ALUA support actually broke more than it fixed for us
Hi
As you guys know Apple introduced ALUA in to Lion and when they bumped up the specs of Xsan. Most people seems to be really happy about this but in our case it actually broke more than it fixed. With our ATTO Celerity ES41 and LSI quad channel fibre cards we only see half of our LUNs. The explanation I got from the ATTO support was:
"The problem with this is that we don't really support connectivity to the LSI Netapp Engenio arrays with Multipathing on Lion with the 4Gb cards. Only the 8Gb cards are supported. The problem is we no longer can control this in Lion. In Snow leopard, there is an nvram switch to disable MPIO...In Lion, we can not do this due to Apple implementing ALUA in the OS itself. Our standard driver hooks into ALUA, and the MP Driver hooks into our own MP subsystem."
So the ATTO cards are out of the picture and ATTO wont come up with a fix. The jury is still out over at LSI and I*m waiting to hear back from them. But what I wonder is exaclty what it was that went wrong when Apple "fixed" this...? Is there a "legacy" mode that I can switch over to in some way? We can't replace all our fibre cards over this, that would be redicilous.
Cheers and thanks in advance
Here's some output from the clients... Let's start with the SNOW LEOPARD client:
mekfcp03s-mac-pro:~ mekfcp03$ sudo cvadmin
Xsan Administrator
Enter command(s)
For command help, enter "help" or "?".
List FSS
File System Services (* indicates service is in control of FS):
1>*nl01[0] located on 1.53.1.1:32850 (pid 10202)
Select FSM "nl01"
Created : Mon Dec 13 16:47:16 2010
Active Connections: 7
Fs Block Size : 16K
Msg Buffer Size : 4K
Disk Devices : 18
Stripe Groups : 6
Fs Blocks : 1280250440 (19.08 TB)
Fs Blocks Free : 821827938 (12.25 TB) (64%)
Xsanadmin (nl01) > show
Show stripe groups (File System "nl01")
Stripe Group 0 [SD0] Status:Up,MetaData,Exclusive
Total Blocks:1245184 (19.00 GB) Reserved:0 (0.00 B) Free:1155397 (17.63 GB) (92%)
MultiPath Method:Rotate
Primary Stripe [SD0] Read:Enabled Write:Enabled
Stripe Group 1 [SD1] Status:Up,Journal,Exclusive
Total Blocks:66128 (1.01 GB) Reserved:0 (0.00 B) Free:65104 (1017.25 MB) (98%)
MultiPath Method:Rotate
Primary Stripe [SD1] Read:Enabled Write:Enabled
Stripe Group 2 [DATA0] Status:Up
Total Blocks:448245140 (6.68 TB) Reserved:270720 (4.13 GB) Free:230827236 (3.44 TB) (51%)
MultiPath Method:Rotate
Primary Stripe [DATA0] Read:Enabled Write:Enabled
Stripe Group 3 [DATA1] Status:Up
Total Blocks:448245140 (6.68 TB) Reserved:270720 (4.13 GB) Free:312787356 (4.66 TB) (69%)
MultiPath Method:Rotate
Primary Stripe [DATA1] Read:Enabled Write:Enabled
Stripe Group 4 [DATA2] Status:Up
Total Blocks:191880080 (2.86 TB) Reserved:270720 (4.13 GB) Free:114779366 (1.71 TB) (59%)
MultiPath Method:Rotate
Primary Stripe [DATA2] Read:Enabled Write:Enabled
Stripe Group 5 [DATA3] Status:Up
Total Blocks:191880080 (2.86 TB) Reserved:270720 (4.13 GB) Free:163433980 (2.44 TB) (85%)
MultiPath Method:Rotate
Primary Stripe [DATA3] Read:Enabled Write:Enabled
Xsanadmin (nl01) > exit
mekfcp03s-mac-pro:~ mekfcp03$ sudo cvlabel -ls
/dev/rdisk6 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA00" Controller#: 'default' Serial#: '600A0B800056167A000003BB498B39EE' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk7 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA02" Controller#: 'default' Serial#: '600A0B80005045D8000001C5498B43B8' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk24 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA01" Controller#: 'default' Serial#: '600A0B80005616F80000039B498B3C19' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk21 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA03" Controller#: 'default' Serial#: '600A0B80005061D4000001B4498B45E1' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk23 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA04" Controller#: 'default' Serial#: '600A0B800056167A000003BD498B3A78' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk22 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA06" Controller#: 'default' Serial#: '600A0B80005045D8000001CB498B4442' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk25 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA07" Controller#: 'default' Serial#: '600A0B80005061D4000001B6498B4671' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk26 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA05" Controller#: 'default' Serial#: '600A0B80005616F80000039D498B3CA5' Sectors: 3585963712. SectorSize: 512. Maximum sectors: 3585963712.
/dev/rdisk27 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA08" Controller#: 'default' Serial#: '600A0B800056167A000003BE498B3AFC' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk32 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA10" Controller#: 'default' Serial#: '600A0B80005045D8000001CC498B44CA' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk29 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA11" Controller#: 'default' Serial#: '600A0B80005061D4000001B7498B46FD' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk34 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA09" Controller#: 'default' Serial#: '600A0B80005616F80000039E498B3D37' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk31 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA14" Controller#: 'default' Serial#: '600A0B80005045D8000001CD498B4552' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk28 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA12" Controller#: 'default' Serial#: '600A0B800056167A000003BF498B3B88' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk30 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA15" Controller#: 'default' Serial#: '600A0B80005061D4000001B8498B478B' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
/dev/rdisk33 [ENGENIO INF-01-00 0623] acfs "MEK_NL01_DATA13" Controller#: 'default' Serial#: '600A0B80005616F80000039F498B3DC7' Sectors: 1535042944. SectorSize: 512. Maximum sectors: 1535042944.
mekfcp03s-mac-pro:~ mekfcp03$ sudo cvadmin
Xsan Administrator
Enter command(s)
For command help, enter "help" or "?".
List FSS
File System Services (* indicates service is in control of FS):
1>*nl01[0] located on 1.53.1.1:32850 (pid 10202)
Select FSM "nl01"
Created : Mon Dec 13 16:47:16 2010
Active Connections: 7
Fs Block Size : 16K
Msg Buffer Size : 4K
Disk Devices : 18
Stripe Groups : 6
Fs Blocks : 1280250440 (19.08 TB)
Fs Blocks Free : 821827938 (12.25 TB) (64%)
Xsanadmin (nl01) > disks
Disks (File System nl01)
acfs Disk Volumes:
MEK_NL01_DATA00 on device:rdisk6 sectors: 3585963712 sector size: 512
MEK_NL01_DATA01 on device:rdisk24 sectors: 3585963712 sector size: 512
MEK_NL01_DATA02 on device:rdisk7 sectors: 3585963712 sector size: 512
MEK_NL01_DATA03 on device:rdisk21 sectors: 3585963712 sector size: 512
MEK_NL01_DATA04 on device:rdisk23 sectors: 3585963712 sector size: 512
MEK_NL01_DATA05 on device:rdisk26 sectors: 3585963712 sector size: 512
MEK_NL01_DATA06 on device:rdisk22 sectors: 3585963712 sector size: 512
MEK_NL01_DATA07 on device:rdisk25 sectors: 3585963712 sector size: 512
MEK_NL01_DATA08 on device:rdisk27 sectors: 1535042944 sector size: 512
MEK_NL01_DATA09 on device:rdisk34 sectors: 1535042944 sector size: 512
MEK_NL01_DATA10 on device:rdisk32 sectors: 1535042944 sector size: 512
MEK_NL01_DATA11 on device:rdisk29 sectors: 1535042944 sector size: 512
MEK_NL01_DATA12 on device:rdisk28 sectors: 1535042944 sector size: 512
MEK_NL01_DATA13 on device:rdisk33 sectors: 1535042944 sector size: 512
MEK_NL01_DATA14 on device:rdisk31 sectors: 1535042944 sector size: 512
MEK_NL01_DATA15 on device:rdisk30 sectors: 1535042944 sector size: 512
Xsanadmin (nl01) >
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