RAID drive cache sizes

  • Thread starter Thread starter Tom Del Rosso
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Tom Del Rosso

Does matching cache size matter at all, like matching RPM since both affect
read times?
 
Tom Del Rosso said:
Does matching cache size matter at all, like matching RPM since both affect
read times?
Click to expand...

What makes you think that read times matter.
 
Previously Tom Del Rosso said:
Does matching cache size matter at all, like matching RPM since both affect
read times?
Click to expand...

For hardware raid the buffer/cache on the disk is typically disabled.
I don't think matching the disks, except for size, has any significant
beneficial effects. If they are not matched, you get a mixed performance,
sometimes the worse of both disks. But if you already have one or
several disks and need to get an additional one, there is no reason not
to get a faster one, if it costs the same or little more.

Arno
 
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