# [OmniOS-discuss] ZFS pool allocation remains after removing all files

Filip Marvan filip.marvan at aira.cz
Thu Oct 9 10:21:01 UTC 2014

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    Hello,

    yes, VAAI could be probably the answer for vmware, and for example NexentaStor have some VAAI support as I know, but there were many problems with that (based on posts from users on Nexenta's forum) like freezing under heavy load and so on.

    I gues, it will be very complicated to bring VAAI support to OmniOS.

    Filip

    >-------------------------------------
    >Date: Thu, 9 Oct 2014 10:02:51 +0000
    >From: Rune Tipsmark <rt at steait.net>
    >To: Filip Marvan <filip.marvan at aira.cz>,
    >	"omnios-discuss at lists.omniti.com"	<omnios-discuss at lists.omniti.com>
    >Subject: Re: [OmniOS-discuss] ZFS pool allocation remains after
    >	removing all files
    >Message-ID: <84b71eba9b5f43828f944cddb42f0160 at EX1301.steait.net>
    >Content-Type: text/plain; charset="us-ascii"
    >
    >Thanks for the input Filip,
    >
    >I think I found the answer though... no VAAI in OmniOS/ZFS
    >
    >VAAI provides amongst other features:
    >
    >Thin Provisioning in ESXi 5.x and later hosts, which allows the ESXi host to tell the array when the >space previously occupied by a virtual machine (whether it is deleted or migrated to another >datastore) can be reclaimed on thin provisioned LUNs.
    >
    >Next questions is, will VAAI be supported in OmniOS/ZFS
    >
    >Br,
    >Rune

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