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тАО01-29-2011 04:52 PM
тАО01-29-2011 04:52 PM
rx2660 disks not all visible
Am I being forced to use RAID-something? I want to be able to replace a bad disk (HP-UX style) or add another one but the docs keep talking about complex RAID stuff. Did I make a mistake in buying mirroring software as it isn't really useful for the internal disks?
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тАО01-29-2011 09:21 PM
тАО01-29-2011 09:21 PM
Re: rx2660 disks not all visible
Welcome to forum.One of these , will give you details of inbuild controllers on you 2660 :
#/usr/sbin/ioscan -kfnd ciss
#sasmgr get_info -D /dev/sasd0 -q vpd
(check ls /dev/sasd* , for which one you have )
From my understanding , mirror disk ux is not required in this case.
Regards,
Rahul
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тАО01-30-2011 04:40 PM
тАО01-30-2011 04:40 PM
Re: rx2660 disks not all visible
No output, no ciss devices.
>> #sasmgr get_info -D /dev/sasd0 -q vpd
# sasmgr get_info -D /dev/sasd1 -q vpd
Vital Product Data Information
------------------------------
Product Description : PCI-X SERIAL ATTACHED SCSI
Part Number : AB419-60001
Engineering Date Code : NA
Serial Number : NA
Misc. Information : PW=15W PCI-X 66MHZ CORE IO
Manufacturing Date : NA
Manufacturing ID : N/A
Checksum : 0x96
EFI Version : 02.01.04
HBA Firmware Version : 01.16.00.00
Asset Tag : NA
So sasmgr is the tool but the output above doesn't help me very muchl. How do I configure it into a JBOD so LVM mirroring can be used?
Or, if it's not possible, am I stuck having to define RAID 1 mirroring for additional disks and volume groups?
And in looking at docs about disk replacement for 11.31, most of them seem to skip these sas controllers completely. I am assuming that they are just like little EVAs or XPs so replacing a mirror using RAID 1 is just a matter of hot swapping the disk and running some sasmgr command to resync the new disk, correct?
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тАО01-30-2011 08:44 PM - last edited on тАО09-29-2011 02:46 PM by Kevin_Paul
тАО01-30-2011 08:44 PM - last edited on тАО09-29-2011 02:46 PM by Kevin_Paul
Re: rx2660 disks not all visible
Question1)
configure it into a JBOD so LVM mirroring can be used:
1)check the disk is being recognized by controller:
sasmgr get_info -D /dev/sasd1 -q phy=all
scsimgr get_info -D /dev/rdisk/disk<_you_own>
now do an ioscan
ioscan -fnC disk
pvcreate metadata on disk ( -B if you intend to use it as boot disk)
(If you inetend to create a mirror boot , search the many
thread on this forum)
add disk to existing vg , otherwise
mkdir /dev/vg01, mknod , vgcreate
pvcreate -f /dev/rdsk/c?t?d0
vgextend /dev/vg?? /dev/dsk/c?t?d0
lvextend -m 1 /dev/vg??/lvol?? /dev/dsk/c?t?d0
Question2 )
just few threads below this thread
http://h30499.www3.hp.com/t5/System-Administration/Not-able-to-remove-device-file-for-internal-removed-disk/m-p/4744548#M387583
http://www13.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c01571733&docLocale=en&admit=109447627+1296368977766+28353475
Hope this helps ,
Regards,
Rahul
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тАО01-31-2011 06:48 AM
тАО01-31-2011 06:48 AM
Re: rx2660 disks not all visible
Reboot, interrupt boot sequence, go to EFI Shell.. then : Shell> drvcfg -s 20
It should be very straightforward and intuitive.
Once configured, you will have a single IR disk -- something like /dev/rdsk/disk5
Use it as your LVM OS disk...
Monitor / check via sasmgr.
If you have SIM/EMS installed -- it wil also monitor the health of your RAID...
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тАО01-31-2011 06:49 AM
тАО01-31-2011 06:49 AM
Re: rx2660 disks not all visible
SO unless yo have a pressing/valid need to use LVM.. use the built in RAID...
You can also lkely do a no spare RAID1 so your other SAS disk (in jbod mode) can be used as safety/lifeboat disk where you can do periodic clones (prior to patching, etc) via DRD tool... (drd clone)
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тАО01-31-2011 07:54 AM
тАО01-31-2011 07:54 AM
Re: rx2660 disks not all visible
The array controller presents a single disk to represent mirrors, much like a LUN from a SAN.
The way to see all disks is to boot the system at console and take the prompt to get into the raid controller configuration.
Did you make a mistake? No. The mirror software is extremely useful for cutting mirror images of logical volumes and migrating data around.
With the P400, mirroring the boot disk is not necessary.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО01-31-2011 07:59 AM
тАО01-31-2011 07:59 AM
Re: rx2660 disks not all visible
"Did I make a mistake in buying mirroring software as it isn't really useful for the internal disks? "
Likely so Amigo.. unless you will in the future need to mirror local, non-RAID SCSI disks.
But ask yourself WHAT did you buy MirrorDisk/UX for? Is it for OS protection solely? Is it for having to easily have a backout, fallback copy of the OS in case patching or maintenance of main OS/vg00 disk goes haywire?
If all the above? Then the 2660's RAID1 facility with HotSpare addresses all along with DRD tool.
And disk replacement, sparing is much easier too compared with LVM...
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тАО01-31-2011 11:00 AM
тАО01-31-2011 11:00 AM
Re: rx2660 disks not all visible
# sasmgr get_info -D /dev/sasd1 -q raid
and
# ioscan -fn
This would be helpful now.
Hope this helps!
Regards
Torsten.
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тАО02-01-2011 07:52 PM
тАО02-01-2011 07:52 PM
Re: rx2660 disks not all visible
We're getting various models (rx3600 and rx6600) that come preconfigured with HP-UX installed. I've always used mirror/ux for PA systems, so I have to get used to having an internal array controller on these boxes. Since I already have HP-UX loaded, I will backup the system to my ignite server, then reconfigure the disks into raid1.
So how do I replace a bad boot disk without booting into EFI? I know all the steps for a jbod but since this is hardware mirrored, I assume that sasmgr options will rebuild the disk transparently and the system just runs without a reboot, correct?