topic Re: saconfig configuration question in Operating System - HP-UX

saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 15:28:47 GMT

Good Day All,

I've configured logical drive 0 with a total of seven 300GB drives using saconfig and RAID5, but for some reason, when I look at this drive using #/usr/sbin/saconfig /dev/ciss21 it shows its size as only 204796 MB whereas I'm thinking it should be almost 2TB. Is there a step I'm missing?

Re: saconfig configuration question

TTr — Mon, 21 Dec 2009 15:45:11 GMT

What does diskinfo show on that same disk? If it shows the correct size, then it might be an overflow on displaying the disk size number. Otherwise there are deeper issues with the controller. Maybe a firmware upgrade is needed.

Re: saconfig configuration question

Robert_Jewell — Mon, 21 Dec 2009 15:55:24 GMT

Can you post the output to the 'saconfig /dev/ciss21' command?

Re: saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 16:05:42 GMT

# diskinfo /dev/rdsk/c21t0d0
SCSI describe of /dev/rdsk/c21t0d0:
vendor: HP
product id: LOGICAL VOLUME
type: direct access
size: 209712000 Kbytes
bytes per sector: 512

Re: saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 16:23:10 GMT

Here's the output:

# /usr/sbin/saconfig /dev/ciss21

******************** SmartArray RAID Controller /dev/ciss21 ********************

Auto-Fail Missing Disks at Boot = enabled
Cache Configuration Status = cache enabled
Cache Ratio = 50% Read / 50% Write

---------- PHYSICAL DRIVES ----------

Location Ch ID Size Status

External 1 0 300.0 GB OK
External 1 1 300.0 GB OK
External 1 2 300.0 GB OK
External 1 3 300.0 GB OK
External 1 4 300.0 GB OK
External 1 5 300.0 GB OK
External 1 8 300.0 GB OK

---------- LOGICAL DRIVE 0 ----------

Device File = c21t0d0
RAID Level = 5
Size = 204796 MB
Stripe Size = 16 KB
Status = OK

Participating Physical Drive(s):

Ch ID

1 0
1 1
1 2
1 3
1 4
1 5
1 8

Participating Spare Drive(s):

None

Re: saconfig configuration question

Torsten. — Mon, 21 Dec 2009 16:56:30 GMT

2TB may be the limit of your controller. What type is it?

Re: saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 17:11:15 GMT

It's a SmartArray 6402 PCI-X controller.

Re: saconfig configuration question

Torsten. — Mon, 21 Dec 2009 17:22:26 GMT

http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarray6402/description.html#compare

Maximum Logical Volume Size 2 TB

Create several drives and configure a VG on them.

Re: saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 17:40:29 GMT

Thanks Torsten, but the issue is that I'm only seeing 209GB on the logical drive rather than the almost 2TB I expect to see. Sorry if I wasn't clear in my original question.

Re: saconfig configuration question

Torsten. — Mon, 21 Dec 2009 17:42:25 GMT

Maybe you missed 1 digit while creating? Extend it now!

Re: saconfig configuration question

Robert_Jewell — Mon, 21 Dec 2009 17:43:12 GMT

Unless I am counting wrong, it appears that both diskinfo and saconfig show this volume as 200GB, not 2TB (as you stated in your question). That doesnt make sense as the physical drives are each 300GB. Perhaps its a problem in displaying the size correctly (which then diskinfo would read as well).

If you continue on and create a VG using this LUN what does that show for info?

-Bob

Re: saconfig configuration question

Galen Benson — Mon, 21 Dec 2009 17:52:02 GMT

Looks like I was able to extend it with: #/usr/sbin/saconfig /dev/ciss21 -E 0 -c 1600 (When I try to go to 1700, I get a response saying: Option -c 1700 GB is larger than available space on logical drive 0) I think that 1600 should give me enough space though. Thanks for your help.