From: Adam Tomkinson (adam.tomkinson@rtel.com)
Date: Wed Oct 12 2005 - 11:39:07 EDT
Hi All,
I have a SF6800 domain attached to a HDS 9960 with what appears to be dual
paths? The server is remotely located and the SAN is not managed by myself but
by a third party. The third party is going to update the microcode/FW to the
controllers in the 9960 and is sure that we'll not have any problems because
we "should" be dual pathed. I've been asked to confirm that the server can see
the storage but I'm no SAN expert and as I said before I'm not responsible for
the assignment of chunks of SAN. so ...
Is it possible to check that the server can see the storage via both channels
of the Qlogic card and is it possible to know what is configured at the switch
from the host. I would think not but I stand to be corrected. This is what
info I get from luxadm:
DEVICE PROPERTIES for disk: 500060e8027a5302
Vendor: HITACHI
Product ID: OPEN-E-CVS-CM
Revision: 0119
Serial Num: 31315
Unformatted capacity: 35.156 MBytes
Write Cache: Enabled
Read Cache: Enabled
Minimum prefetch: 0x0
Maximum prefetch: 0x0
Device Type: Disk device
Path(s):
/dev/rdsk/c3t500060E80000000000007A5300000F02d0s2
/devices/scsi_vhci/ssd@g500060e80000000000007a5300000f02:c,raw
Controller /devices/ssm@0,0/pci@1b,700000/SUNW,qlc@1/fp@0,0
Device Address 500060e8027a5302,42
Host controller port WWN 210000e08b0636c2
Class primary
State ONLINE
Controller /devices/ssm@0,0/pci@1b,700000/SUNW,qlc@2/fp@0,0
Device Address 500060e8027a5312,42
Host controller port WWN 210000e08b0602c2
Class primary
State ONLINE
I think that clearly shows that there are two ports enabled and attached at
the host but without knowing what's configured at the switch and the 9960,
surely I can't confirm that when they fail it over I won't loose my LUN
(/export/home). Isn't the pathing transparent to the host?
ART
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