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Chris Robertson wrote:
> In short, it works for me.
> 
> Machine specs:
> 
> CPU : Intel Xeon X3320 (Quad Core @2.50GHz)
> Memory: 8GB DDR2-667 ECC
> Storage Controller: Adaptec 51645 (BIOS & Firmware 5.2-1 17380, driver 
> 1.1-5 2465)
> Drives: 16 Seagate ST31000340NS (1TB ES.2) w/AN05 firmware
> OS: CentOS 5.3
> 
> [root@archive-1 ~]# uname -a
> Linux archive-1.gcimbs.net 2.6.18-128.7.1.el5 #1 SMP Mon Aug 24 08:21:56 
> EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
> [root@archive-1 ~]# rpm -q kmod-xfs
> kmod-xfs-0.4-2
> [root@archive-1 ~]# rpm -q drbd83
> drbd83-8.3.2-6.el5_3
> [root@archive-1 ~]# rpm -q kmod-drbd83
> kmod-drbd83-8.3.2-6.el5_3
> 
> /data is an XFS file system (with an external journal) mounted 
> (noatime,nodiratime,logdev=/dev/drbd1,logbufs=8,logbsize=262144) on top 
> of  DRBD on  a RAID 6 setup provided by the fore mentioned Adaptec.
> 
> [root@archive-1 ~]# df -h /dev/drbd0
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/drbd0            3.0T  984G  2.1T  33% /data
> [root@archive-1 ~]# df -i /dev/drbd0
> Filesystem            Inodes   IUsed   IFree IUse% Mounted on
> /dev/drbd0           1932728448 39835171 1892893277    3% /data

Hmmm, so I discovered something new (DRBD), I've been using NBD for
years quite successfully (only needed to failover to the backup twice).

Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md4             464280160 269514136 194766024  59% /home

cat /proc/mdstat
Personalities : [raid1]
md4 : active raid1 nbd0[1] md3[0]
      464294336 blocks [2/2] [UU]

Though this isn't used for backuppc, just smbd server... I see drbd adds
some more intelligence to this, and I'll need to investigate it further.

Thanks for your feedback on this useful tool to sync backuppc.

Regards,
Adam

- --
Adam Goryachev
Website Managers
www.websitemanagers.com.au
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