Re: [CentOS] iSCSI Question

2012-12-04 Thread joel billy
On 11/17/12, Steven Crothers steven.croth...@gmail.com wrote: Hey everyone, Is anybody aware of a /true/ active/active multi-head and multi-target clustered iSCSI daemon? Hi Steven, If i'm correct you are looking for a shared storage clustering setup with HA. Does this help

Re: [CentOS] iSCSI Question

2012-11-19 Thread Gordon Messmer
On 11/17/2012 09:46 PM, Steven Crothers wrote: DRBD is off topic from my original post, as it is not the correct solution. That may be, but the link you were given was not off topic, entirely: iSCSI is a stateful protocol, there is more to it that than just reads and writes. To run multipath

Re: [CentOS] iSCSI Question

2012-11-17 Thread Steven Crothers
On Sat, Nov 17, 2012 at 12:34 AM, Ian Pilcher arequip...@gmail.com wrote: There's a reason that those proprietary vendors are able to charge big $$$ for this functionality. That's the truth... I was hoping they were based off some open source implementation of iSCSI somewhere. I mean I

Re: [CentOS] iSCSI Question

2012-11-17 Thread Digimer
On 11/17/2012 06:08 PM, Steven Crothers wrote: On Sat, Nov 17, 2012 at 12:34 AM, Ian Pilcher arequip...@gmail.com wrote: There's a reason that those proprietary vendors are able to charge big $$$ for this functionality. That's the truth... I was hoping they were based off some open

Re: [CentOS] iSCSI Question

2012-11-17 Thread Steven Crothers
On Sat, Nov 17, 2012 at 6:23 PM, Digimer li...@alteeve.ca wrote: You could take two nodes, setup DRBD to replicate the data (synchronously), manage a floating/virtual IP in pacemaker or rgmanager and export the DRBD storage as an iSCSI LUN using tgtd. Then you can migrate to the backup node,

Re: [CentOS] iSCSI Question

2012-11-17 Thread John R Pierce
On 11/17/12 6:58 PM, Steven Crothers wrote: On Sat, Nov 17, 2012 at 6:23 PM, Digimerli...@alteeve.ca wrote: You could take two nodes, setup DRBD to replicate the data (synchronously), manage a floating/virtual IP in pacemaker or rgmanager and export the DRBD storage as an iSCSI LUN using

Re: [CentOS] iSCSI Question

2012-11-17 Thread Digimer
On 11/17/2012 09:58 PM, Steven Crothers wrote: On Sat, Nov 17, 2012 at 6:23 PM, Digimer li...@alteeve.ca mailto:li...@alteeve.ca wrote: You could take two nodes, setup DRBD to replicate the data (synchronously), manage a floating/virtual IP in pacemaker or rgmanager and export

Re: [CentOS] iSCSI Question

2012-11-17 Thread Digimer
On 11/17/2012 10:40 PM, John R Pierce wrote: On 11/17/12 6:58 PM, Steven Crothers wrote: On Sat, Nov 17, 2012 at 6:23 PM, Digimerli...@alteeve.ca wrote: You could take two nodes, setup DRBD to replicate the data (synchronously), manage a floating/virtual IP in pacemaker or rgmanager and

Re: [CentOS] iSCSI Question

2012-11-17 Thread Steven Crothers
DRBD is not active/active. I cannot utilize both server's as an active session. DRBD replication latency will, in-fact, break my storage. I do not want active/passive or hot-standby failover... DRBD is offtopic from my original post, as it is not the correct solution. Steven Crothers

[CentOS] iSCSI Question

2012-11-16 Thread Steven Crothers
Hey everyone, Is anybody aware of a /true/ active/active multi-head and multi-target clustered iSCSI daemon? IE: Server 1: Hostname: host1.test.com IP Address: 10.0.0.1 Server 2: Hostname: host2.test.com IP Address: 10.0.0.2 Then they would utilize a CLVM disk between them, let's call that VG

Re: [CentOS] iSCSI Question

2012-11-16 Thread Ian Pilcher
On 11/16/2012 10:02 PM, Steven Crothers wrote: Any idea of an iscsi tgtd that supports this? As far as I can tell, none do (that I can find). I know some proprietary vendors have this type of functionality, which may or may not be using iSCSI code (but that's a whole set of arguments for