| From: | John R Pierce <pierce(at)hogranch(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: SSD Drives |
| Date: | 2014-04-04 17:49:12 |
| Message-ID: | 533EF098.2090704@hogranch.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On 4/4/2014 10:15 AM, Merlin Moncure wrote:
>> 2. Do I need both BBU on the RAID*and* capacitor on the SSD or just on one?
>> >Which one? I'm suspecting capacitor on the SSD and write-through on the
>> >RAID.
> You need both. The capacitor protects the drive, the BBU protects the
> raid controller.
>
note BBU's on raid cards are being replaced by 'flash-back' which is a
supercap and flash memory backup for the raid card's write-back cache.
--
john r pierce 37N 122W
somewhere on the middle of the left coast
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Seamus Abshere | 2014-04-04 17:49:30 | Re: Why is pg_restore trying to create tables in pg_catalog? |
| Previous Message | Merlin Moncure | 2014-04-04 17:15:41 | Re: SSD Drives |