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computing:storage:iscsi_vs_nfs

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computing:storage:iscsi_vs_nfs [2015/08/09 20:40]
gcooper 		computing:storage:iscsi_vs_nfs [2017/06/07 11:37] (current)
gcooper
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 <note important>By default, **iSCSI writes are async** (writeback cache enabled) and **NFS writes are sync**.  This goes a long way towards explaining the common impression that iSCSI (block storage) is faster than NFS (file storage).</note> <note important>By default, **iSCSI writes are async** (writeback cache enabled) and **NFS writes are sync**.  This goes a long way towards explaining the common impression that iSCSI (block storage) is faster than NFS (file storage).</note>
  
-<note tip>With ZFS storage servers, with an iSCSI setup with VM's, setting ''sync=always'' is the correct way to go.</note>+<note tip>With ZFS storage servers, with an iSCSI setup with VM's, setting ''sync=always'' is the correct way to go for data integrity, but it may be slower.</note>
  
 <note tip>With ZFS storage servers, you should implement a fast SSD (or better) SLOG device (per pool) which significantly speeds up sync writes.</note> <note tip>With ZFS storage servers, you should implement a fast SSD (or better) SLOG device (per pool) which significantly speeds up sync writes.</note>
computing/storage/iscsi_vs_nfs.1439174426.txt.gz · Last modified: 2015/08/09 20:40 by gcooper

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