Relative performance of various disk subsystems
Hi!
I am designing a tool which would make recommendations on re-use of existing hardware and suggestions for procurement of new. For the disk subsystem part, I would need some basic "relative performance" figures for the following disk subsystems:
1. Internal disks of a SunFire V880
2. D1000
3. A1000
4. T3B
5. 3510
I am well aware that the general reply to this would be "it depends...", so let me try to be a bit more specific.
The application used is Sybase. The disks are configured for striping in hardware and mirroring in software (where available). Typically all the spindles of a disk subsystem are used to stripe the data to.
The performance I am after is "transactional performance" in other words, number of I/O operations (SQL Selects) per second.
The kind of reply I would need is a simple set of factors, e g: A 3510 is 5 times as fast as a T3, which in turn is twice as fast as a A1000 and so on...
Best regards,
Hans-Goran Puke mailto: hans-goran.puke@ericsson.com
