Re: How to make disk device "Available"?
From: Christian Eriksson (c-eriks_at_algonet.se)
Date: 03/07/04
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Date: 7 Mar 2004 09:56:24 -0800
FlossyFloss <flossyflossmail-news@yahoo.com> wrote in message news:<c2daev$5fv$1@charly.heeg.de>...
> Christian Eriksson wrote:
>
> > How do I make a disk device marked as "Defined" "Available"?
> >
> > $> lsdev -Cc disk -s scsi
> > hdisk0 Available 00-07-A1-3,0 2.0 GB SCSI Disk Drive
> > hdisk1 Available 00-07-A1-4,0 2.0 GB SCSI Disk Drive
> > hdisk2 Available 00-07-A1-5,0 Bull 4.2 GB 16 Bit SCSI Disk Drive.
> > hdisk3 Available X0-01-01-0,0 Bull DiskArray RAID 5 Disk Group
> > hdisk4 Defined X0-01-01-0,1 Bull DiskArray RAID 5 Disk Group
> >
> > I think hdisk3 and hdisk4 "points at" an external disk cabinet because
> > smit -> Devices -> Fixed Disk -> DiskArray Storage-System Manager
> > shows:
> >
> > tty1 Available 00-00-S2-00 Asynchronous Terminal
> > tty2 Available 00-00-S3-00 Asynchronous Terminal
> >
> > and choosing tty1 gives:
> >
> > SP A
> > SP SCSI ID 0 Sat Mar 6 02
> >
> >
> > 1. Presentation Utility
> >
> > 2. Bind Logical Units
> >
> > 3. Unbind Logical Units
> >
> > 4. View Maintenance Information
> >
> > 5. Change Parameters
> >
> > 6. View Cache Statistics
> >
> > and choice 1 shows:
> >
> > SP A Presentation Utility (*)
> > SP SCSI ID 0 Sat Mar 6 02:29:10 2004
> >
> > PROM Revision
> > 8.02
> >
> > | ENA 0 | 0
> > FAN A OK | ENA 0 | 1 Microcode
> > Revision
> > FAN B OK | ENA 0 | 2
> > 09.26.21
> > | ENA 0 | 3
> > VSC A OK | ENA 0 | 4 Statistics
> > Logging
> > VSC B OK A
> > DISABLED
> >
> > | RDY 1 | 0 Peer
> > SP
> > BBU OK | RDY 1 | 1
> > PRESENT
> > | RDY 1 | 2
> > ADP 0% | RDY 1 | 3 Requests
> > Completed
> > BDP 0% | RDY 1 | 4
> > 5194395
> > UDP 0% B
> >
> > I think hdisk 3 is lun A above and hdisk4 lun B. Is that right?
> >
> > Regards Christian Eriksson
>
> If the device does not have any problems in the error
> report, then use this command:
>
> mkdev -l hdisk4'
>
> Usually if it is not available by default it might have
> a problem or is only defined for a reason, like a hardware
> problem or the driver is incorrect or some other reason.
>
> I cannot tell from that output if that is the LUN you are
> talking about. You can use this command to see if the
> LUN ids match:
>
> lscfg -vl hdisk4
How do I read the error report for the device?
Output from "lscfg -vl" for hdisk 4 and hdisk3:
$> lscfg -vl hdisk4
DEVICE LOCATION DESCRIPTION
hdisk4 X0-01-01-0,1 Bull DiskArray RAID 5 Disk Group
$> lscfg -vl hdisk3
DEVICE LOCATION DESCRIPTION
hdisk3 X0-01-01-0,0 Bull DiskArray RAID 5 Disk Group
Manufacturer................DGC
Machine Type and Model......RAID 5
ROS Level and ID............0926
Serial Number...............SAUNA CONTROLLER
The SCSI ID 0 match X0-01-01-_0_,1 and the LUN ID 1 also match
X0-01-01-0,_1_.
SP A
SP SCSI ID _0_
...........
| RDY _1_ | 0
............
This LUN (LUN 1) is not owned by SP A though but from SP B it shows
SP B Presentation Utility ( )
SP SCSI ID 1 Sun Mar 7 18:34:27 2004
PROM Revision
8.02
| RDY 0 | 0
FAN A OK | RDY 0 | 1 Microcode
Revision
FAN B OK | RDY 0 | 2
09.26.21
| RDY 0 | 3
VSC A OK | RDY 0 | 4 Statistics
Logging
VSC B OK A
DISABLED
| ENA 1 | 0 Peer
SP
BBU OK | ENA 1 | 1
PRESENT
| ENA 1 | 2
ADP 93% | ENA 1 | 3 Requests
Completed
BDP 0% | ENA 1 | 4 190
UDP 0% B
Cache
States
Write:
ENABLED
Enter ? for HELP, ^ to GO TO MAIN MENU Read:
ENABLED
Selecting one of the disks in LUN 1 shows:
Description: 1.0 GB SCSI Disk
State: ENABLED and SNIFFING 22 Percent Complete
Unit Number (hex): 1
Unit Type: RAID-5 Group (Individual Access Array)
Stripe Element Size: 128 Sectors
Maximum Rebuild Time: 4 Hours
Statistics logging is disabled.
Shouldn't the system be able to access this LUN 1 on the RAID-5 Group?
I tried:
$> mkdev -l hdisk4
hdisk4 Defined
$> echo $?
0
$> lsdev -Cc disk
hdisk0 Available 00-07-A1-3,0 2.0 GB SCSI Disk Drive
hdisk1 Available 00-07-A1-4,0 2.0 GB SCSI Disk Drive
hdisk2 Available 00-07-A1-5,0 Bull 4.2 GB 16 Bit SCSI Disk Drive.
hdisk3 Available X0-01-01-0,0 Bull DiskArray RAID 5 Disk Group
hdisk4 Defined X0-01-01-0,1 Bull DiskArray RAID 5 Disk Group
For your information:
$> uname -a
AIX R0231868 3 4 00921402A000
Now I see something here. From SP B the SCSI ID is 1. Does this mean I
have to set up a device with adress X0-01-01-1,1 to get an "Available"
device for LUN 1?
Regards Christian
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