Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-31 Thread Kay Diederichs
I have a very different experience with NFS: we are using Gigabit Ethernet, and a 64bit RHEL6 clone with ECC memory as a file server; it has RAID1 ext4 home directories and RAID6 ext4 for synchrotron data. We have had zero performance or reliability problems with this in a computer lab with ~

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-31 Thread Dirk Kostrewa
We have a very similar setup, and I can only second Kay's experience. Best regards, Dirk. Am 31.07.13 13:36, schrieb Kay Diederichs: I have a very different experience with NFS: we are using Gigabit Ethernet, and a 64bit RHEL6 clone with ECC memory as a file server; it has RAID1 ext4 home

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-31 Thread Dmitry Rodionov
We don't have any performance/ reliability issues with our cheapskate setup either. Make sure the network is wired with Cat5e or Cat6 cables, especially if distances are 8m+ Dmitry On 2013-07-31, at 7:36 AM, Kay Diederichs wrote: I have a very different experience with NFS: we are

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-31 Thread Robert Esnouf
- 287783 and rob...@well.ox.ac.uk Fax: (+44) - 1865 - 287547 Original message Date: Wed, 31 Jul 2013 12:36:59 +0100 From: CCP4 bulletin board CCP4BB@JISCMAIL.AC.UK (on behalf of Kay Diederichs kay.diederi...@uni-konstanz.de) Subject: Re: [ccp4bb] Advise on setting up

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-31 Thread Kay Diederichs
@JISCMAIL.AC.UK (on behalf of Kay Diederichs kay.diederi...@uni-konstanz.de) Subject: Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster To: CCP4BB@JISCMAIL.AC.UK I have a very different experience with NFS: we are using Gigabit Ethernet, and a 64bit RHEL6 clone with ECC memory as a file

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-30 Thread Adam Ralph
Dear Sergei, Second point is probably easier to do. An alternative to NFS is sshfs. The advantage is that it uses SSH which is installed by default and configured the same way. If you generate key pairs you can use ssh or sshfs without a password. Check this page below;

Re: [ccp4bb] Advise on setting up/ maintaining a Ubuntu cluster

2013-07-30 Thread Francois Berenger
Be careful that running data intensive jobs over NFS is super slow (at least an order of magnitude compared to writing things on a local disk). Not only the computation is slow, but you may be slowing down all other users of the cluster too... F. On 07/30/2013 11:28 PM, Adam Ralph wrote: Dear