10 More Discussions You Might Find Interesting
1. AIX
Hi all,
How to view more info about this error message that i am keep on getting.
Tried "errpt -a" but the output is huge.
Thanks in advance! (2 Replies)
Discussion started by: lramsb4u
2 Replies
2. AIX
May I know how can I add a new SSA pdisk into array and become usable hdisk? I have inserted a 36GB SSA disk into enclosure and done the "cfgmgr" and I can see it already been regconized as pdisk47.
I would like to make it a system disk in order for me to add to my volume group. Please let me... (3 Replies)
Discussion started by: kwliew999
3 Replies
3. AIX
Hi Experts,
I have configured A D40 Array. There is an faulty disk which is not part of an raid volume but shows fault in the diagnostics.
pdisk15 U0.1-P1-I1/Q1-W40AA83CC2400D
SSA160 Physical Disk Drive ( MB)
Is there a way to stop this... (2 Replies)
Discussion started by: vuppala360
2 Replies
4. AIX
Hi All,
What's the proper procedure for removing SSA arrays? Is the procedure like these?
- rmdev ssa disk
- physical turn off the ssa
- cfgmgr
There's no more filesystem or logical volume on it. It's just pdisk and hdisk.
Thanks in advance,
itik (3 Replies)
Discussion started by: itik
3 Replies
5. AIX
Hi guys,
I'd like to share my migration/mirroring of ssa to san. No downtime for users, probably I/O performance.
here's the step:
1 After the lun had been carved on the SAN and the connections had been done on AIX fiber card
2 “lspv” and look for the new SAN hdisk? on the bottom, say... (1 Reply)
Discussion started by: itik
1 Replies
6. AIX
Hi,
Do you have procedures to migrate ssa disks to san disk?
I don't have testing environment and I want my file system be migrated one at a time. I want it to be fast, I have only 15-20 hours to do it on every sunday 1PM till monday 7am. My largest file system is about 150G.
The AIX is... (0 Replies)
Discussion started by: itik
0 Replies
7. AIX
hi all,
i have an p620 server. it has 2 scsi 18gb disks for aix4.3 OS and 3 ssa disks for database and an serialRAID adapter. 3 ssa disks configured raid level 5.
to increase capacity of the datavg, i buy 2 ssa 18gb disks. but i can not add them to the existing datavg. i did the following... (1 Reply)
Discussion started by: tinhlx
1 Replies
8. AIX
I am in the process of updating ssa adapters, drives and enclosures and wanted to know if there are any caveats that anyone would like to share. The documentation is not very clear on the ordering of the updates.
Any tips would be appreciated. (1 Reply)
Discussion started by: chosie
1 Replies
9. AIX
Helo:
We updated form AIX 4.3.3 to AIX 5.1-7 and after this we spent more than double time in read from external disks. Aparently the ssa cards microcode is at last level and all the ptf and apars are instaled.
Out backups expent more than double time, but curiously in read only, if we write in... (0 Replies)
Discussion started by: Javier Gutierre
0 Replies
10. AIX
Hi
Can I add disks on the fly to extend the capacity of an existing RAID 5 volume?
It's created on a 4P Advanced SSA Raid Adapter.
I need to extend a volume group, so I figured it would be easiest to extend the "physical disk" which is a RAID5 volume.
Thanks. (1 Reply)
Discussion started by: osee
1 Replies
diskinfo(1M) diskinfo(1M)
NAME
diskinfo - describe characteristics of a disk device
SYNOPSIS
character_devicefile
DESCRIPTION
The command determines whether the character special file named by character_devicefile is associated with a SCSI or floppy disk drive. If
so, summarizes the disk's characteristics.
The command displays information about the following characteristics of disk drives:
Vendor name Manufacturer of the drive (SCSI only)
Product ID Product identification number or ASCII name
Type Floppy or SCSI classification for the device
Disk Size of disk specified in bytes
Sector Specified as bytes per sector
Both the size of disk and bytes per sector represent formatted media.
Options
The command recognizes the following options:
Return the size of the disk in 1024-byte sectors.
Display a verbose summary of all of the information
available from the device. For floppy drives, this option has no effect.
SCSI disk devices return the following:
Vendor and product ID
Device type
Size (in bytes and in logical blocks)
Bytes per sector
Revision level
SCSI conformance level data
DIAGNOSTICS
Most of the diagnostic messages from are self-explanatory. However, one diagnostic message deserves further clarification. If the command
fails to access the lunpath corresponding to a given special file, it displays the following diagnostics data, which contains device iden-
tification and capability information:
device type 127 (unknown); device is inaccessible
iso ecma ansi rmb dtq resv rdf
WARNINGS
As of release 10.20 of HP-UX, certain IDE devices, CD-ROMs in particular, will respond to inquiries as if they were SCSI devices. There-
fore, the text "SCSI describe" in the output of the command does not definitively mean that the disk is in fact a SCSI drive (especially in
the case of CD-ROMs). Use to check which type of INTERFACE node, SCSI or IDE, the device's hardware path lies beneath, in order to defini-
tively determine a drive's interface.
DEPENDENCIES
General
The command supports floppy and HP SCSI disk devices.
SCSI Devices
The SCSI specification provides for a wide variety of device-dependent formats. For non-HP devices, may be unable to interpret all of the
data returned by the device. Refer to the drive operating manual accompanying the unit for more information.
AUTHOR
was developed by HP.
SEE ALSO
ioscan(1M), lsdev(1M), disktab(4), disk(7).
diskinfo(1M)
