how_to:performance_requirements
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| how_to:performance_requirements [2012/06/11 10:05] – [Disk I/O] paul | how_to:performance_requirements [2012/09/10 14:29] – [Disk I/O] paul | ||
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| If the Avg Disk Queue is high, but the IOPS is not too high for the disks, then the issue may be disk fragmentation. If the disk is highly fragmented, then the disk subsystem will take longer than normal to process requests, so defragmenting the disk is a good thing to try. | If the Avg Disk Queue is high, but the IOPS is not too high for the disks, then the issue may be disk fragmentation. If the disk is highly fragmented, then the disk subsystem will take longer than normal to process requests, so defragmenting the disk is a good thing to try. | ||
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| + | **Never use RAID 5 for any database server - such as VPOP3 uses - RAID 5 will be very slow when many small updates are made, such as to database tables** | ||
| =====Examples===== | =====Examples===== | ||
how_to/performance_requirements.txt · Last modified: 2018/11/14 10:45 by 127.0.0.1
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