tag:blogger.com,1999:blog-2858171248417312957.post4722575532768131080..comments2022-03-22T07:42:07.112-07:00Comments on techmute: FAST & PAM Contrastedtechmutehttp://www.blogger.com/profile/02613472355641438692noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-2858171248417312957.post-31242469700613914202010-03-02T13:08:36.236-08:002010-03-02T13:08:36.236-08:00That's 4TB of NAND Flash not 4TB of DRAM Alex....That's 4TB of NAND Flash not 4TB of DRAM Alex.<br /><br />The Symm has up to 512GB of mirrored Global DRAM. Not non mirrored non global FLASH occupying slots in the head and costing anywhere between $80K to $100K per card.<br /><br />Again apples to oranges.Storagezillahttp://storagezilla.typepad.comnoreply@blogger.comtag:blogger.com,1999:blog-2858171248417312957.post-36385527694277362422010-03-02T06:05:31.675-08:002010-03-02T06:05:31.675-08:00Correction: 4TB not 8.Correction: 4TB not 8.Alex McDonaldhttp://blogs.netapp.com/shadeofbluenoreply@blogger.comtag:blogger.com,1999:blog-2858171248417312957.post-21204445729392967772010-03-02T05:55:52.114-08:002010-03-02T05:55:52.114-08:00To clarify Zilla's "acres" comment; ...To clarify Zilla's "acres" comment; it's 128GB per V Max engine, for a total of 1TB. Each head in a FAS6080 can support 4TB per head, for a total of 8TB. Square miles by comparison.Alex McDonaldhttp://blogs.netapp.com/shadeofbluenoreply@blogger.comtag:blogger.com,1999:blog-2858171248417312957.post-91500018611741591102010-03-02T02:43:35.241-08:002010-03-02T02:43:35.241-08:00You've used Symmetrix in the example but regar...You've used Symmetrix in the example but regardless of FAST Symm already has a massive DRAM cache globally available regardless of what you do with FAST.<br /><br />So yes FAST V1 will promote hot LUNs to a higher storage tier and FAST V2 will promote hot blocks to a higher storage tier but what's hotter still will sit in those acres of DRAM in the processing complex.Storagezillahttp://storagezilla.typepad.comnoreply@blogger.com