[Linux-cluster] clvmd hangs on startup

Valeriu Mutu vmutu at pcbi.upenn.edu
Thu Mar 3 16:50:57 UTC 2011


On Wed, Mar 02, 2011 at 05:36:45PM -0500, Jeff Sturm wrote:
> Double-check that the 2nd node can read and write the shared iSCSI
> storage.

Reading/writing from/to the iSCSI storage device works as seen below.

On the 1st node:
[root at vm1 cluster]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes 
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 3.39855 seconds, 3.0 MB/s

[root at vm1 cluster]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null 
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 0.331069 seconds, 30.9 MB/s

On the 2nd node:
[root at vm2 ~]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 3.2465 seconds, 3.2 MB/s

[root at vm2 ~]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 0.223337 seconds, 45.8 MB/s

-- 
Valeriu Mutu




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