On multiple Red Hat 4 boxes, after kernel upgrade (currently
2.6.9-89.ELsmp):
# ls /dev/vpath*
/dev/vpatha /dev/vpatha1 /dev/vpathb /dev/vpathb1 /dev/vpathc
/dev/vpathd /dev/vpathe /dev/vpathf /dev/vpathg
Before the upgrade, we had /dev/vpath[cdefg]1, not just /dev/vpath[cdefg].
But tools such as fdisk indicate the partition actually exists, e.g.,
# fdisk -l /dev/vpathc
Disk /dev/vpathc: 524 MB, 524288000 bytes
17 heads, 59 sectors/track, 1020 cylinders
Units = cylinders of 1003 * 512 = 513536 bytes
Device Boot Start End Blocks Id System
/dev/vpathc1 1 1020 511500+ 83 Linux
# partx -l /dev/vpathc
# 1: 59- 1023059 ( 1023001 sectors, 523 MB)
# 2: 0- -1 ( 0 sectors, 0 MB)
# 3: 0- -1 ( 0 sectors, 0 MB)
# 4: 0- -1 ( 0 sectors, 0 MB)
# parted /dev/vpathc
...
(parted) p
Disk geometry for /dev/vpathc: 0.000-500.000 megabytes
Disk label type: msdos
Minor Start End Type Filesystem Flags
1 0.029 499.541 primary
So it's only missing from the /dev directory. What could have caused this?
How do we add the partition "files" back to the directory?
We use IBM sdd:
# lsmod | grep sdd
sdd_mod 375872 2
# dmesg | grep sdd
...
sdd-mod: SDD 1.6.3.0-9 2.6.9-89.ELsmp SMP Jun 17 2009 13:48:17 (C) IBM Corp.
`sdd status' or `lsvpcfg' correctly shows 4 paths for each vpath:
# sdd status
IBMsdd status: [ OK ]
000 vpatha ( 252, 0) 6005076801870036a0000000000002be = 6005076801870036a0000000000002be = /dev/sda /dev/sdh /dev/sdo /dev/sdv
...
`cfgvpath' only says path has already been configured.
Process /opt/IBMsdd/bin/sddsrv is up and running. We tried start_udev,
partprobe, fdisk -> w. None helped.
Thanks for any insight. (If you decide to CC me when you reply to the
list, that'll be perfect.)
Yong Huang
yong321@xxxxxxxxx
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