Input Outpout Error
Scott_Purcell at Dell.com
Scott_Purcell at Dell.com
Tue Nov 6 14:31:11 CST 2007
A disclaimer... I'm not one of Dell's engineers on Linux or on the
hardware and I don't offer this as authoritative. I'm a trainer who has
worked with LVM in RHEL 4 on servers with SCSI drives. Your problem,
while not exactly anything I've seen, is at least reminiscient of
something I've seen in my classes.
In the commands you list below, it looks like you created partitions,
used partprobe to cause them to be recognized w/o a reboot, and then put
them into use for LVM. In RHEL4, that was always problematic for me. In
the software RAID labs, we could get by with partprobe and carry on...
But for LVM, that always caused problems. I learned to always reboot
after creating partitions intended for LVM usage -- and things worked
flawlessly after that.
Take it for what it is worth...
Scott
Scott Purcell
(512) 723-7427
Dell Services http://www.dell.com/services
How am I doing? Email my manager, Sherry_Dossman at Dell.com, with any
feedback.
-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Mad Unix
Sent: Tuesday, November 06, 2007 12:53 AM
To: linux-poweredge-Lists
Subject: Input Outpout Error
I built the first LUN with 50G with (/dev/sdb, /dev/sdd) then I expanded
with another 50G (/dev/sdc, /dev/sde) the expansion done without error
but i still have the error i/o ...
I get this when doing pvscan, vgscan, and lvscan, lvdsipaly, fdisk -l
for example:
[root at linux1 ~]# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
53G 3.8G 46G 8% /
/dev/sda3 99M 13M 82M 14% /boot
tmpfs 7.9G 0 7.9G 0% /dev/shm
[root at linux1 ~]# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
53G 3.8G 46G 8% /
/dev/sda3 99M 13M 82M 14% /boot
tmpfs 7.9G 0 7.9G 0% /dev/shm
[root at linux1 ~]# partprobe
[root at linux1 ~]# service multipathd restart Stopping multipathd daemon:
[ OK ] Starting multipathd daemon: [ OK ]
[root at linux1 ~]# fdisk -l
Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 cylinders Units = cylinders of 16065 *
512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 5 40131 de Dell Utility
/dev/sda2 * 6 1543 12353985 83 Linux
/dev/sda3 1544 1556 104422+ 83 Linux
/dev/sda4 1557 8844 58540860 5 Extended
/dev/sda5 1557 8844 58540828+ 8e Linux LVM
Disk /dev/sdb: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065
* 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdd: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065
* 512 = 8225280 bytes
Disk /dev/sdd doesn't contain a valid partition table
Disk /dev/dm-2: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065
* 512 = 8225280 bytes
Disk /dev/dm-2 doesn't contain a valid partition table
[root at linux1 ~]# lvscan
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
ACTIVE '/dev/VolGroup00/LogVol00' [53.88 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol01' [1.94 GB] inherit
[root at linux1 ~]# pvscan
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sdc: read failed after 0 of 4096 at 107374116864: Input/output
error
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 107374116864: Input/output
error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
PV /dev/sda5 VG VolGroup00 lvm2 [55.81 GB / 0 free]
PV /dev/dm-2 VG linux1 lvm2 [100.00 GB / 100.00 GB free]
Total: 2 [155.81 GB] / in use: 2 [155.81 GB] / in no VG: 0 [0 ]
[root at linux1 ~]# vgscan
Reading all physical volumes. This may take a while...
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sdc: read failed after 0 of 4096 at 107374116864: Input/output
error
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 107374116864: Input/output
error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
Found volume group "VolGroup00" using metadata type lvm2
Found volume group "linux1" using metadata type lvm2
[root at linux1 ~]#
[root at linux1 ~]# lvdispaly
-bash: lvdispaly: command not found
[root at linux1 ~]# lvdisplay
/dev/sdc: read failed after 0 of 4096 at 0: Input/output error
/dev/sde: read failed after 0 of 4096 at 0: Input/output error
--- Logical volume ---
LV Name /dev/VolGroup00/LogVol00
VG Name VolGroup00
LV UUID pqbv9V-TggT-0Gwx-rTpq-hhRY-NuPF-VUagRf
LV Write Access read/write
LV Status available
# open 1
LV Size 53.88 GB
Current LE 1724
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0
--- Logical volume ---
LV Name /dev/VolGroup00/LogVol01
VG Name VolGroup00
LV UUID W84SdD-e07O-Bv8j-okci-YaGH-ia3S-TSoJ1C
LV Write Access read/write
LV Status available
# open 1
LV Size 1.94 GB
Current LE 62
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1
--
madunix
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