E2Vault - Configuration of StoragePath

UPDATED: April 28, 2017

The storage directories are typically dominated by random read activity. In comparison the index directory often has very high random read and write rates. In general , the more drives that can service requests, the more potential I/O you can achieve.
For random reads RAID 10 is would probably be the fastest but RAID 5/6 would close behind.
For random writes, RAID 10 is probably fastest followed more distantly by RAID 5/6.
Considerations like space efficiency and behavior during a fault may figure into the decision. Note that if you put less data on a device than its capacity, the head tends to move in a more narrow range and can respond faster in theory. If you put multiple partitions on the same physical volume, they may compete with each other meaning slower response times as the head swings between the two partitions. However, you might go further and use enterprise class SSDs rather than magnetic drives. That changes the performance equation considerably.

RAID-10 would be faster but consumes more drives.
RAID-6 has weaker write performance but uses fewer drives.
The Vault storage directories (storage/pagedata/docdata) tend to be read heavy so that may be ok. But you wouldn't want this for the indexes which can have high write traffic during load operations.
RAID-5 uses fewer still but there is increased risk that data will be lost during a rebuild, particularly for larger arrays.


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