2
votes
5answers
1k views

DRBD vs. GlusterFS for replication

I need to build a solution to host internal git repositories. It needs to supports hundreds of thousands (or more) repositories. I plan on using multiple "dumb" servers with a shared storage, so ...
0
votes
0answers
44 views

DRBD mount randomly unmounts itself

We have setup setup an NFS HA "cluster" using drbd/heartbeat. Everything works as expected when tested... If the instance nfs1 goes down, nfs2 picks up and everything seems to be fine. On both ...
1
vote
2answers
351 views

Drbd Primary/Primary + iSCSI: accessing to different files avoids split brain?

I have a question / curiosity about split-brain on a Drbd Primary/Primary configuration. Supposing two nodes (hosts), host1 and host2 configured with Drbd Primary/Primary and two different shares ...
1
vote
1answer
455 views

NFS failover WITHOUT DRBD?

So I am trying to set up a redundant NFS share in a cloud environment(all links internal, half gig links), and I am looking into using heartbeat for failover, but all the guides seem to be about ...
2
votes
3answers
3k views

NFS / DRBD / XFS Performance issues

we have a NFS sitting on top of XFS and drbd which delivers us a horrible performance (about 1MB/s read / write as shown in iostat/iotop) the xfs volume properties are: meta-data=/dev/drbd0 ...
0
votes
2answers
332 views

DRDB and NFS: NFS downtime during failover restoration

I'm pretty new to DRBD and NFS, and am in the process of testing a DRDB server with heartbeat to use for our company's NFS share. The entire setup is running fine, with the NFS state directory ...
5
votes
4answers
2k views

DRDB and NFS: is there any efficient way to make failover transparent for NFS

We are implementing DRDB + heartbeat with two servers to have a file system with failover. These servers exposes a NFS service for other servers Currently DRDB is working just fine, but when testing ...
4
votes
4answers
15k views

How to measure IOwait per device?

I have a server, which exports home directories over NFS. They are on software RAID1 (/dev/sdb and /dev/sdc) and the OS is on /dev/sda. I noticed that my %iowait as reported by top and sar are ...
3
votes
3answers
698 views

vmware vmdk disk problem

I have a VMware ESXi 4 server and 2 storage servers (mounted via nfs). Between the storage servers (Fedora 14) is a drbd cluster (dual primary) and ocfs2 filesystem; also every server has a local ...
2
votes
1answer
891 views

NFS-shared file-system is locking up

Our NFS-shared file-system is locking up. Please feel free to ask any questions you feel relevant. :) At the time, there are a lot of processes in "disk sleep" state, and the load averages on our ...