ZFS - HAST - TRIM - SSD - Do they work well together?

G

GeorgeLinn

Was curious if using SSD’s with HAST and ZFS affect how ZFS supports TRIM on SSD’s ? Would HAST inhibit ZFS ability to manage\support TRIM in any way?

Thanks.
George
 
Thanks for those details! Regarding the link from http://www.phoronix.com explaining “FreeBSD's ZFS file-system implementation now supports TRIM for solid-state drives (SSDs)”. If you use HAST with ZFS and are feeding your ZFS pools HAST devices that are SSD based, does ZFS still offer TRIM support? Does ZFS even realize that it is dealing with SSD’s anymore since it is actually accessing a HAST device? Hope I am making sense :)
 
ZFS doesn't need to know that it runs on SSD. It is all about BIO_DELETE method support by the device. Unless device return error on attempt to use it, ZFS will use it. I have never used HAST, but as I can see in its sources and man page it does know about it.
 
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