IT Employment

Ask something
Discussion Locked

Clustering: Shared Disk question

0 helpful
2 replies

by dhouchin

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

I'm considering setting up my SQL server and my Exchange server in a Win2K cluster. These servers currently support 20 users. The Fiber Channel SANs seem to be overkill for my needs. 36GB hard drive space is ample for the forseeable future.

I've seen references to using shared SCSI disk arrays rather than SANs, but I've not been able to locate any solid configuration data.

Can I simply connect an external SCSI disk array directly to both of the servers in a cluster? That is, Server 1 connects directly to the Disk Array, and the Disk Array connects directly to Server 2. Essentially, each server would be terminating the SCSI chain. Is there something else that's needed to manage the ownership of the Hard Drives?

Assuming that such a configuration is viable, is MSCS sufficient or is another product like ClusterX necessary?

Thanks for your help,

Dennis

2 replies

by wagnerrc

You will need a dual channel SCSI controller to support this, from what I have seen. For example Compaq uses a Dual channel Ultra 3 in the CL1850 models. These cards essentially have two connections and not a daisy chain of devices.

by wagnerrc

You will need a dual channel SCSI controller to support this, from what I have seen. For example Compaq uses a Dual channel Ultra 3 in the CL1850 models. These cards essentially have two connections and not a daisy chain of devices. Dual channel inthe array, and each server connecting to a channel.

This discussion is closed to new replies.