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тАО07-23-2003 09:57 PM
тАО07-23-2003 09:57 PM
How to tell actual bus speed
We have Ultra 3 disks on one and Ultra 320 disks on the other.
I was wondering if perhaps the bus speed was the problem. Could there be some setting causing this?
On the ML 570 we have 2 5302 cards and they are in separate busses than the tape and network cards. I think there are 3 actual busses with 2 slots each on this server.
Any suggestions would be appreciated!
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тАО07-24-2003 12:07 AM
тАО07-24-2003 12:07 AM
Re: How to tell actual bus speed
Note that this is the data transfer rate over SCSI bus. If the drives are doing random reads and have to move their heads the results are MUCH slower.
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тАО07-24-2003 05:01 AM
тАО07-24-2003 05:01 AM
Re: How to tell actual bus speed
I understand that the Ultra 160/320 are the maximum bus speeds. I also understand that Ultra 2 has a maximum bus speed of 80 MB/sec, which somewhat lines up with what we are actually seeing. So I was wondering if something might be causing the 5302 card to be running in an Ultra 2 compatible mode and choking our throughput.
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тАО07-24-2003 10:57 AM
тАО07-24-2003 10:57 AM
Re: How to tell actual bus speed
I can check tomorrow whether insight manager can display scsi bus speed (no proliant here at home).
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тАО08-01-2003 02:37 PM
тАО08-01-2003 02:37 PM