topic Re: hard disks superdome in Operating System - HP-UX

hard disks superdome

silusan — Fri, 18 Nov 2011 09:53:38 GMT

would like to know what MSA is attached to my hp (integrity) superdome(SD 32) and what/how many hard disks are in there locally in this superdome.

how to determine this? can anyone help please?

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 10:08:29 GMT

The older MSA's (like MSA30) are just JBODs, an "ioscan -fn" may identify the device - but the other MSA's (e.g. MSA1000, MSA1500, MSA2000) may be listed in your "ioscan -fn" too. Post it, then we will see ...

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 10:53:39 GMT

this superdome has four vm hosts and two RACs(each RAC has 2 to 3 vPars in it)

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 11:20:42 GMT

The HSV300 is an EVA4400, this part looks like a DS21x0 disk enclosure:

ext_bus     4 0/0/8/1/0       mpt       CLAIMED     INTERFACE    SCSI Ultra320 A6961-60011
                              /dev/mpt4
target      8 0/0/8/1/0.0     tgt       CLAIMED     DEVICE
disk        4 0/0/8/1/0.0.0   sdisk     CLAIMED     DEVICE       HP 146 GST3146854LC
                              /dev/dsk/c4t0d0   /dev/rdsk/c4t0d0
target      9 0/0/8/1/0.2     tgt       CLAIMED     DEVICE
disk        5 0/0/8/1/0.2.0   sdisk     CLAIMED     DEVICE       HP 146 GST3146855LC
                              /dev/dsk/c4t2d0   /dev/rdsk/c4t2d0
target     10 0/0/8/1/0.4     tgt       CLAIMED     DEVICE
disk       10 0/0/8/1/0.4.0   sdisk     CLAIMED     DEVICE       HP 146 GST3146854LC
                              /dev/dsk/c4t4d0   /dev/rdsk/c4t4d0
target     12 0/0/8/1/0.6     tgt       CLAIMED     DEVICE
disk       12 0/0/8/1/0.6.0   sdisk     CLAIMED     DEVICE       HP 146 GST3146855LC
                              /dev/dsk/c4t6d0   /dev/rdsk/c4t6d0

So you probably have 2 DS21x0 disk enclosures (for mirroring) connected to each nPar with local disks. This is indicated by the SCSI IDs of 0, 2, 4 and 6 (switch position "A" at the enclosure). Somebody should have a look at the rack!

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 11:15:51 GMT

first question would be what MSA does this superdome has? can I request a quick reply please?

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 11:22:33 GMT

No MSA at all!

But a DS21x0, see http://h18006.www1.hp.com/storage/disk_storage/disk_systems/ds2120/index.html

picture:

http://h18006.www1.hp.com/products/storageworks/images/ds2120/170x190-ds2120.jpg

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 11:27:58 GMT

Thanks, how did you deduced it?

also... do u want to see scan output from MON prompt?
no need of any other information ?
any output from any vPar needed?

I am just trying to confirm before passing on this info to my superiors.

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 11:34:52 GMT

An MSA would look like this in ioscan:

MSA30:

ctl 5 0/2/1/0/4/0.15.0 sctl CLAIMED DEVICE COMPAQ PROLIANT 4L7E*DB

P2000:

3/0/0/7/0/0/1.1.14.0.0.0.0 disk HP P2000 G3 FC

MSA1000/1500:

disk 14 64000/0xfa00/0x2 esdisk CLAIMED DEVICE COMPAQ MSA1000 VOLUME

The DS2120 does not show up in ioscan, because there is nothing else than disks. But depending on the chassis switch position it has fixed SCSI IDs for the maximum of 4 disks - 0,2,4,6 - this is what you have!

The DS2120 was also kind of "default" local disk hardware for this generation of superdome.

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 11:35:17 GMT

ok..so no MSA in any of these servers.

We are trying to find out if we have any large disks (may be more than 300GB)

Attached document shows u the conversations we had..

can u pls read it and suggest

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 11:45:01 GMT

These are 2.5-inch (SFF) Dual-Port SAS drives - you don't have any of them!

If you are worried about HDD firmware, I would recommend to check your EVA4400 (but these are FC disks)!

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 11:53:07 GMT

These are 2.5-inch (SFF) Dual-Port SAS drives - you don't have any of them!

does that mean..we dont have any disks larger than 300GB? or we dont have any MSA? or both?

I would also like to know how did you deduce that these are: 2.5-inch (SFF) Dual-Port SAS drives ...because they are DS2120 or because of any other reason?

thanks fro your replies

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 12:02:41 GMT

The advisory you posted tells about these 2,5" SAS drives (by the way, the advisory is related to a smartarray - you don't have a smartarray controller, you don't have a MSA).

Have a look at your ioscans:

disk 4 0/0/8/1/0.0.0 sdisk CLAIMED DEVICE HP 146 GST3146854LC
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0

These are 146GB parallel SCSI drives, no SAS at all.

Your EVA4400 may have larger disks, but the advisory does not apply to fibre channel drives!

Re: hard disks superdome

Torsten. — Fri, 18 Nov 2011 12:08:20 GMT

Just to complete - this is what you see as "HSV300" (in fact an EVA4400 disk array:

http://h10010.www1.hp.com/wwpc/us/en/sm/WF05a/12169-304616-304648-304648-304648-3664763.html

Re: hard disks superdome

silusan — Fri, 18 Nov 2011 12:20:20 GMT

ok..when you say the advisory..you mean the attachment i gave... issue.docx.

I think I got my answer now.. thanks for your time Torsten