10 More Discussions You Might Find Interesting
1. Ubuntu
I suddenly don't see my folders into /mnt/md0.
What can be reason?
mdadm --detail /dev/md*
/dev/md0:
Version : 1.2
Creation Time : Fri Jan 18 09:54:27 2019
Raid Level : raid1
Array Size : 1953383488 (1862.89 GiB 2000.26 GB)
Used Dev Size : 1953383488 (1862.89 GiB... (8 Replies)
Discussion started by: tomislav91
8 Replies
2. UNIX for Advanced & Expert Users
Currently I am using this laborious command
lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}'
Would like to know if there is any shorter method to get this mapping of... (2 Replies)
Discussion started by: royalibrahim
2 Replies
3. Solaris
Dear All ,
Pl find the below command ,
# raidctl -l
Controller: 1
Volume:c1t0d0
Disk: 0.0.0
Disk: 0.1.0
Disk: 0.3.0
#
raidctl -l c1t0d0
Volume Size Stripe Status Cache RAID
Sub Size ... (10 Replies)
Discussion started by: jegaraman
10 Replies
4. Red Hat
Good morning
Recently we needed to change the password from a redhat 6.5 system that no one knew the root password.
Starting the system with the init=/bin/bash method took us to the following scenario:
system_vg active with only root_lv and tmpfs mounted.
our entries at fstab are like... (1 Reply)
Discussion started by: Ikaro0
1 Replies
5. AIX
Hello,
I have a scsi pci x raid controller card on which I had created a disk array of 3 disks
when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk )
suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies
6. Solaris
I've just installed Sol 10 Update 9 on a Sun 4140 server and have a RAID 1 configuration (2 136 Gb drives) for the OS and have created a RAID 5 array (6 136 GB) drives. When i log into the system I am unable to see the RAID 5 disks at all. I've tried using the devfsadm command but no luck and... (9 Replies)
Discussion started by: goose25
9 Replies
7. Red Hat
Hi,
I had a doubt regarding device mapper notations and their corresponding LVM volumes.
I have configured a volume group with two logical volumes in it as root and swap.
The entries in the /etc/fstab file show the dm notations namely,
/dev/mapper/VolGroup00-LogVol01... (2 Replies)
Discussion started by: kanna_geekworkz
2 Replies
8. Red Hat
I have an HP blade with Qlogic HBA's connected to an EVA8000. I have downloaded the latest multipath.conf from HP's website. The drive presented to the server appears to be configured and working except the output of "multipath -l" shows for all paths. What is causing this output?
mpath0... (2 Replies)
Discussion started by: manzier
2 Replies
9. Solaris
Hi.
I need to move a 5 disk RAID5 array from a SE3310 box to a different SE3310 array. After installing the disks in the "new" StorEdge device, I "would like" ;) to be able have access to the data which is on the RAID.
Essentially, the quesion is, how can this be done? :confused:
I checked... (5 Replies)
Discussion started by: alexs77
5 Replies
10. Red Hat
We have a Red Hat linux server running on IBM x445 hardware. There are external disks in an IBM EXP300 disk enclosure. The system is running RAID 5. One of the four IBM disks (73.4 GB 10k FRU 06P5760) has become faulty. The system is still up and running OK because of the RAID. In that same EXP300... (3 Replies)
Discussion started by: pdudley
3 Replies
WIPEFS(8) MAINTENANCE COMMANDS WIPEFS(8)
NAME
wipefs - wipe a filesystem signature from a device
SYNOPSIS
wipefs [-ahnp] [-o offset] device
DESCRIPTION
wipefs allows to erase filesystem or raid signatures (magic strings) from the device to make the filesystem invisible for libblkid. wipefs
does not erase the whole filesystem or any other data from the device. When used without options -a or -o, it lists all visible filesys-
tems and offsets of their signatures.
OPTIONS
-a, --all
Erase all available signatures.
-h, --help
Print help and exit.
-n, --no-act
Causes everything to be done except for the write() call.
-o, --offset offset
Specifies location (in bytes) of the signature which should be erased from the device. The offset number may include a "0x" prefix,
and then the number will be read as a hex value. It is possible to specify multiple -o options.
-p, --parsable
Print out in parsable instead of printable format. Encode all potentially unsafe characters of a string to the corresponding hex
value prefixed by 'x'.
AUTHOR
Karel Zak <kzak@redhat.com>.
AVAILABILITY
The wipefs command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
SEE ALSO
blkid(8) findfs(8)
Linux October 2009 WIPEFS(8)