02-09-2004
Thank you oombera. I would normally start a round of wild Google searches to find the info, but I am new to these forums and I thought I would jump right in and start a fresh post. This section seems like it needed a little action as well.
I wish Linux had some similar tools for disk management as Solaris. And I wish I could afford Solaris hardware for home that would parallel what I can afford in standard x86 hardware!
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1. HP-UX
Being somewhat extremely new to Unix, I have just had a system crash
One of my Volume Groups has crashed
However, this Volume Group is actually mirrored
How do I switch to use the mirrored copy?
Any assistance greatly appreciated
Thanks (1 Reply)
Discussion started by: cobdeng
1 Replies
2. Solaris
Hi ,
I am new to SVM .when i try to learn RAID 1 , first they are creating two RAID 0 strips through
metainit d51 1 1 c0t0d0s2
metainit d52 1 1 c1t0d0s2
In the next step
metainit d50 -m d51
d50: Mirror is setup
next step is
metaattach d50 d52
d50 : submirror d52 is... (7 Replies)
Discussion started by: vr_mari
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3. Ubuntu
Hi,
I have an Ubuntu system which I have an faulted mirror.
I trying to replace the disk, but I'm stuck on that it boots and only showing GRUB
GRUB
## ## End Default Options ##
title Ubuntu 8.04.4 LTS, kernel 2.6.24-26-server
root (hd0,0)
kernel ... (0 Replies)
Discussion started by: jld
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4. AIX
Hi Admins,
I am new into aix.I was surfing aix pages and reading how to replace failed mirror disks.I read in one of the posts that we have to reboot the server to replace the disk. actually i was a HPUX admin and many times replaced root mirror disk online.Ofcourse it was hot swappable.
... (2 Replies)
Discussion started by: newaix
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5. AIX
Good afternoon all,
I'm sorry if this is a total n00b question but if you create a mirrored disk (rootvg (approx. 30 GB) - AIX 6.1 on a P520), will there be any impact to the production system as it's syncronizing? The boss thinks there will be too much impact to do this during working hours.
... (4 Replies)
Discussion started by: Spellbound
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6. AIX
hello folks,
I have a 300GB ROOTVG volume groups with one filesystem /backup having 200GB allocated space
Now, I cannot alt disk clone or mirrorvg this hdisk with another smaller disk. The disk size has to be 300GB; I tried alt disk clone and mirrorvg , it doesn't work. you cannot copy LVs as... (9 Replies)
Discussion started by: filosophizer
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7. HP-UX
what is the difference between DRD and Root Mirror Disk using LVM mirror ? (3 Replies)
Discussion started by: maxim42
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8. Linux
Hello,
I am trying to convert a single-drive Centos 7.2 installation with LVM into a two-disk mdadm mirror with mrrored LVM. I was able to follow the excellent instructions at:
http://www.dgoradia.com/creating-a-raid1-mirrored-on-an-existing-centos-on-lvm/and did create a two-disk mirror... (1 Reply)
Discussion started by: Clovis_Sangrail
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9. Solaris
Hi,
I am very new to scripting. I need to create a script which does following.
Scenario:
First get the format command output echo | format
Insert the new disk to Solaris Server
Get Zpool status
format the new disk
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LEARN ABOUT OPENSOLARIS
addbadsec
addbadsec(1M) System Administration Commands addbadsec(1M)
NAME
addbadsec - map out defective disk blocks
SYNOPSIS
addbadsec [-p] [-a blkno [blkno]...] [-f filename] raw_device
DESCRIPTION
addbadsec is used by the system administrator to map out bad disk blocks. Normally, these blocks are identified during surface analysis,
but occasionally the disk subsystem reports unrecoverable data errors indicating a bad block. A block number reported in this way can be
fed directly into addbadsec, and the block will be remapped. addbadsec will first attempt hardware remapping. This is supported on SCSI
drives and takes place at the disk hardware level. If the target is an IDE drive, then software remapping is used. In order for software
remapping to succeed, the partition must contain an alternate slice and there must be room in this slice to perform the mapping.
It should be understood that bad blocks lead to data loss. Remapping a defective block does not repair a damaged file. If a bad block
occurs to a disk-resident file system structure such as a superblock, the entire slice might have to be recovered from a backup.
OPTIONS
The following options are supported:
-a Adds the specified blocks to the hardware or software map. If more than one block number is specified, the entire list should be
quoted and block numbers should be separated by white space.
-f Adds the specified blocks to the hardware or software map. The bad blocks are listed, one per line, in the specified file.
-p Causes addbadsec to print the current software map. The output shows the defective block and the assigned alternate. This option can-
not be used to print the hardware map.
OPERANDS
The following operand is supported:
raw_device The address of the disk drive (see FILES).
FILES
The raw device should be /dev/rdsk/c?[t?]d?p0. See disks(1M) for an explanation of SCSI and IDE device naming conventions.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
disks(1M), diskscan(1M), fdisk(1M), fmthard(1M), format(1M), attributes(5)
NOTES
The format(1M) utility is available to format, label, analyze, and repair SCSI disks. This utility is included with the addbadsec,
diskscan(1M), fdisk(1M), and fmthard(1M) commands available for x86. To format an IDE disk, use the DOS "format" utility; however, to
label, analyze, or repair IDE disks on x86 systems, use the Solaris format(1M) utility.
SunOS 5.11 24 Feb 1998 addbadsec(1M)