[CentOS] OT: Caching synchronous writes

Thu Apr 22 20:37:41 UTC 2010
Les Mikesell <lesmikesell at gmail.com>

On 4/22/2010 3:20 PM, Ray Van Dolson wrote:
> [ Wish there was a generic, active Linux "storage" mailing list out
>    there -- something other than the kernel lists I mean ]
> To frame the discussion, we use VMware ESX (vSphere) quite a bit with
> NFS datastores.  Often times with NetApp, but lately, more often with
> Solaris 10 + ZFS + SSD's for ZIL (intent log or write cache).
> The ZIL lets us use synchronous writes (safer) without the normal
> delay.  Were we to try and get the same level of performance with
> Linux, we'd need to use async mode for our NFS shares -- and we'd lose
> some reliability.
> However, given the latest rumblings and ruminations about Oracle
> potentially no longer selling entitlements for Solaris 10 on non-Sun
> hardware -- and then turning around and no longer allowing you to run
> Solaris 10 "freely", we're left with either OpenSolaris or looking at
> Linux again (we run Solaris 10 on Silicon Mechanics hardware).

Is there some problem with OpenSolaris or NexentaStor?

   Les Mikesell
    lesmikesell at gmail.com