Re: Slightly OT: Flash Storage

From: Biju Thomas <biju.thomas_at_gmail.com>
Date: Sun, 14 Dec 2014 21:12:13 -0600
Message-ID: <CAF9tyKpZMMHC0Q6of_01Yjivqyeyy3sku_4rxbR+fa=1m138Cw_at_mail.gmail.com>

Thank you all. We also use VMAX where SSD pool is used for few customer Oracle databases. But do not have all flash database yet. I think the cost is still high for SSD/flash storage when coming to big databases (hence not commonly adopted by mid-size market - correct?), but there is no question on performance benefit I think. We saw the EBS R12 upgrade time reduce in almost half just by moving the storage from EMC Clarion to EMC VMAX.

Biju Thomas

<http://about.me/biju.thomas>

On Sun, Dec 14, 2014 at 10:52 AM, Dave Morgan <oracle_at_1001111.com> wrote:
>
> All of our client's production datafiles are on RAID 0 equivalent flash.
> Sizes range
> from 100G to just under 9TB. One client has a lot of redo, one set of
> their redo
> files is on flash.
>
> It is the most cost effective performance increase available today. Much
> cheaper
> than attempting to teach duhvelopers to take pride in their work.
>
> Our first flash installs were probably 3-4 years ago. We insist on RAID 0
> functional
> equivalence. We have yet to perform a recovery (or transfer to the hot
> backup) due
> to flash hardware failure. I expect the redo flash described above will be
> the first to cause us issues. We are ready :)
>
> None of our clients think it is cost effective to use flash on the hot
> backups
> or anywhere else.
>
> YMMV
> Dave
>
> --
> Dave Morgan
> Senior Consultant, 1001111 Alberta Limited
> dave.morgan_at_1001111.com
> 403 399 2442
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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Received on Mon Dec 15 2014 - 04:12:13 CET