Re: [zfs-discuss] volblocksize for VMware VMFS-5

2012-03-26 Thread Richard Elling
On Mar 25, 2012, at 8:58 PM, Yuri Vorobyev wrote: > Hello. > > What the best practices for choosing ZFS volume volblocksize setting for > VMware VMFS-5? > VMFS-5 block size is 1Mb. Not sure how it corresponds with ZFS. Zero correlation. What I see on the wire from VMFS is 16KB random reads fo

Re: [zfs-discuss] volblocksize for VMware VMFS-5

2012-03-26 Thread Jim Klimov
2012-03-26 7:58, Yuri Vorobyev wrote: Hello. What the best practices for choosing ZFS volume volblocksize setting for VMware VMFS-5? VMFS-5 block size is 1Mb. Not sure how it corresponds with ZFS. Setup details follow: - 11 pairs of mirrors; - 600Gb 15k SAS disks; - SSDs for L2ARC and ZIL - COM

[zfs-discuss] volblocksize for VMware VMFS-5

2012-03-25 Thread Yuri Vorobyev
Hello. What the best practices for choosing ZFS volume volblocksize setting for VMware VMFS-5? VMFS-5 block size is 1Mb. Not sure how it corresponds with ZFS. Setup details follow: - 11 pairs of mirrors; - 600Gb 15k SAS disks; - SSDs for L2ARC and ZIL - COMSTAR FC target; - about 30 virtual ma