Comments on: poor-mans cluster http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/ Storage Solutions for Real World IT Professionals Sun, 21 Mar 2010 00:45:14 +0000 http://wordpress.org/?v=1.5.2 Comment on poor-mans cluster by: Ernst Lopes Cardozo http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-25781 Tue, 09 Jan 2007 15:07:31 +0000 http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-25781 Yet another low cost approach: a SAS-SAN, i.e. a Box with RAID controlers and disks connected with extrenal SAS cables. En example would be the Dell MD3000, 15 SAS drive slots, redundent controlers, power, etc. and 4 port of 4-lane SAS (12Gbps) that connect to SAS-HBA's in the servers. Yet another low cost approach: a SAS-SAN, i.e. a Box with RAID controlers and disks connected with extrenal SAS cables. En example would be the Dell MD3000, 15 SAS drive slots, redundent controlers, power, etc. and 4 port of 4-lane SAS (12Gbps) that connect to SAS-HBA’s in the servers.

]]> Comment on poor-mans cluster by: Jon Toigo http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-25416 Sun, 07 Jan 2007 14:35:55 +0000 http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-25416 You could also create a real time mirror by virtualizing your iSCSI targets into a common pool using software from DataCore and simply doing copy-on-write to multiple targets. Alternatively, look at UDP, which unlocks the multicast functionality of IP, and lets you target two or more storage devices by their IP addresses for every write. Also, I believe that NFSv4 with extensions will provide parallelism, if you want to use that instead of CIFS, for your Exchange-to-NAS architecture. You could also create a real time mirror by virtualizing your iSCSI targets into a common pool using software from DataCore and simply doing copy-on-write to multiple targets.

Alternatively, look at UDP, which unlocks the multicast functionality of IP, and lets you target two or more storage devices by their IP addresses for every write.

Also, I believe that NFSv4 with extensions will provide parallelism, if you want to use that instead of CIFS, for your Exchange-to-NAS architecture.

]]> Comment on poor-mans cluster by: Steve http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-24812 Tue, 02 Jan 2007 17:05:46 +0000 http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-24812 Any suitable iSCSI target will do here. It is a matter if your budget and what brand you would trust. Many companies now offer iSCSI targets; as does Adaptec, Snap Servers. Symantec is not needed if you don't have to use dynamic disks. for clustering support, setting up the iSCSI LUNs as basic disks is probably all you need to do. looks like they support up to an 8-way cluster with their SW iSCSI initiator Microsofts link on clustering with iSCSI http://www.microsoft.com/WindowsServer2003/technologies/storage/iscsi/iscsicluster.mspx Any suitable iSCSI target will do here. It is a matter if your budget and what brand you would trust. Many companies now offer iSCSI targets; as does Adaptec, Snap Servers.

Symantec is not needed if you don’t have to use dynamic disks. for clustering support, setting up the iSCSI LUNs as basic disks is probably all you need to do. looks like they support up to an 8-way cluster with their SW iSCSI initiator

Microsofts link on clustering with iSCSI
http://www.microsoft.com/WindowsServer2003/technologies/storage/iscsi/iscsicluster.mspx

]]> Comment on poor-mans cluster by: korfut http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-22846 Tue, 19 Dec 2006 21:53:46 +0000 http://storageadvisors.adaptec.com/2006/12/18/poor-mans-cluster/#comment-22846 Hello Steve, I am trying to put together a "tight-customer cluster", similar to your "poor-man cluster" :) ... It will run sql server cluster active/passive (2 nodes server), so I need a storage for db data on a shared bus. - Could you please advise on necessary hardware? - Is the Symantec Storage software necessary? Microsoft technet says there is a need of a shared disk so that db data can be accessed by both servers but one at the time. Thank you. Regards Hello Steve,
I am trying to put together a “tight-customer cluster”, similar to your “poor-man cluster” :) …
It will run sql server cluster active/passive (2 nodes server), so I need a storage for db data on a shared bus.
- Could you please advise on necessary hardware?
- Is the Symantec Storage software necessary?

Microsoft technet says there is a need of a shared disk so that db data can be accessed by both servers but one at the time.

Thank you.

Regards

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