[Openstack] How much partition number should be on disk

Vil Surkin vill.srk at gmail.com
Fri Sep 6 08:45:15 UTC 2013

In source code (https://github.com/openstack/swift/blob/master/bin/swift-ring-builder line 289) i found, that partitions count multiple 'replica_count' param only when i print information about ring. So, what 'partition_power' i should use for installation with, for example, 500 disks? And how much partitions are really placed on disks: 2^part_power or 2^port_power*replica_count ?

пятница, 6 сентября 2013 г. в 11:22, Vil Surkin написал:

> Hello,
> When i create ring, i use formula like "disks_numbers * 100 and round to nearest power of two". I calculate param "part_power" to be near 100 on each disk. But when i add devices to ring and rebalance them, then i get number of partitions multiplied to "replica_count" number.
> So, how much partitions should be on one disk?  

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