The question is a little vague, and it depends on how the disks are configured. Direct attached disks can be much faster than 30-40MB/sec, and san drives also usually are. We've got several netware servers with direct-attached raid5 arrays getting 70-80MB/sec. A similiarly configured server, but attached to our ds4300 ibm san gets around 80-100MB/sec. The san volumes however, are spread out across a lot more drives, so they have an inherent advantage.
Generally, a 15K ultra320 hard drive can get at max 60-80MB/sec throughput. If you manage to architect it so that you're getting close to maximum throughput out of multiple drives, the theoretical limit would become the controller interface, or the bus that the controller is on. Ultra160 controllers are 160MB/sec theoretical, but more like 70MB/sec real-world, while Ultra320's double that. San arrays are typically on 2gb interfaces, for a theoretical max of 256MB/sec. As mentioned before though, I've never seen a single san volume get over 100MB/sec on its own. >>> [EMAIL PROTECTED] 6/21/2006 9:14:42 AM >>> Hi, How fast is Windows? I have seen Windows TSM servers stream data in 30-40MB/sec with direct attached disks. What maximum speed can I expekt with SAN disks, (clarion)? What about the maximum speed on Linux/Intel with DAS or SAN? Disk configuration will matter but I only want to know what the values might be. Thanks Henrik ------------------------------------------------------------------- The information contained in this message may be CONFIDENTIAL and is intended for the addressee only. Any unauthorised use, dissemination of the information or copying of this message is prohibited. If you are not the addressee, please notify the sender immediately by return e-mail and delete this message. Thank you. Confidentiality Notice follows: The information in this message (and the documents attached to it, if any) is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken, or omitted to be taken in reliance on it is prohibited and may be unlawful. If you have received this message in error, please delete all electronic copies of this message (and the documents attached to it, if any), destroy any hard copies you may have created and notify me immediately by replying to this email. Thank you.
