Dear All,
Previously we have used CentOS4.4 release with Supported Cluster Suite and DRBD 8.0.0 Active/passive (failover)
We have build the DRBD 8.0.0 Source in CentOS4.4 Setup We have configured the DRBD Resource with default OS installed LVM (/dev/mapper/vgroot-LogVol00 and /dev/mapper/vgroot-LogVol01) Partition and its working fine
Partition Tables are listed below ================================= Filesystem Size Used Avail Use% Mounted on /dev/mapper/vgroot-LogVol02 3.0G 1.1G 1.7G 39% / /dev/mapper/vgroot-LogVol03 11G 8.5G 1.7G 84% /usr /dev/hda1 494M 37M 432M 8% /boot tmpfs 248M 0 248M 0% /dev/shm /dev/mapper/vgroot-LogVol01 8.5G 148M 7.9G 2% /home /dev/mapper/vgroot-LogVol00 13G 161M 12G 2% /backup
Currently we are migrating to CentOS5.5
Step 1: We have migrated to CentOS5.5 Alone and Used Older DRBD 8.0.0 Version
We have build the DRBD 8.0.0 Source in CentOS5.5 Setup We have configured the DRBD Resource with default OS installed LVM (/dev/mapper/vgroot-LogVol00 and /dev/mapper/vgroot-LogVol01) Partition The DRBD Meta data created successfully, but DRBD Module Load failed
Errors are listed below ======================= [root@corviewprimary user]# service drbd start Starting DRBD resources: Can not load the drbd module.
[root@corviewprimary user]#
[root@corviewprimary user]# modprobe drbd FATAL: Error inserting drbd (/lib/modules/2.6.18-194.3.1.el5xen/kernel/drivers/block/drbd.ko): Invalid argument [root@corviewprimary user]#
Step 2: We have updated DRBD from 8.0.0 to 8.3.8
We have build the DRDB 8.3.8 Source in CentOS5.5 Setup We have configured the DRBD Resource with default OS installed LVM (/dev/mapper/vgroot-LogVol00 and /dev/mapper/vgroot-LogVol01) Partition and its not working
We got the following errors on meta data creation ================================================= [root@corviewprimary ~]# drbdadm create-md drbd0 md_offset 13958639616 al_offset 13958606848 bm_offset 13958180864
Found ext3 filesystem 13631488 kB data area apparently used 13631036 kB left usable by current configuration
Device size would be truncated, which would corrupt data and result in 'access beyond end of device' errors. You need to either * use external meta data (recommended) * shrink that filesystem first * zero out the device (destroy the filesystem) Operation refused.
Command 'drbdmeta 0 v08 /dev/mapper/vgroot-LogVol00 internal create-md' terminated with exit code 40 drbdadm create-md drbd0: exited with code 40 [root@corviewprimary ~]# drbdadm create-md drbd1 md_offset 9395236864 al_offset 9395204096 bm_offset 9394917376
Found ext3 filesystem 9175040 kB data area apparently used 9174724 kB left usable by current configuration
Device size would be truncated, which would corrupt data and result in 'access beyond end of device' errors. You need to either * use external meta data (recommended) * shrink that filesystem first * zero out the device (destroy the filesystem) Operation refused.
Command 'drbdmeta 1 v08 /dev/mapper/vgroot-LogVol01 internal create-md' terminated with exit code 40 drbdadm create-md drbd1: exited with code 40
Please help us to use DRBD etiter 8.0.0 or 8.3.8 with CentOS5.5
Thanks in Advance.
-S.Balaji