| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Pierre C <lists(at)peufeu(dot)com> |
| Cc: | Greg Smith <greg(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, jd(at)commandprompt(dot)com, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>, Steve Crawford <scrawford(at)pinpointresearch(dot)com>, pgsql-performance(at)postgresql(dot)org, Ben Chobot <bench(at)silentmedia(dot)com> |
| Subject: | Re: BBU Cache vs. spindles |
| Date: | 2010-12-01 13:48:01 |
| Message-ID: | 201012011348.oB1Dm1123786@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance pgsql-www |
Pierre C wrote:
>
> > Is that true? I have no idea. I thought everything was done at the
> > 512-byte block level.
>
> Newer disks (2TB and up) can have 4k sectors, but this still means a page
> spans several sectors.
Yes, I had heard about that.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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