From: Phil Turmel <philip@turmel.org>
To: "Vanhorn, Mike" <michael.vanhorn@wright.edu>
Cc: Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Odd --examine output
Date: Mon, 15 Apr 2013 10:00:22 -0400 [thread overview]
Message-ID: <516C07F6.7040903@turmel.org> (raw)
In-Reply-To: <CD917B51.41713%michael.vanhorn@wright.edu>
On 04/15/2013 09:46 AM, Vanhorn, Mike wrote:
> On 4/12/13 10:52 AM, "Phil Turmel" <philip@turmel.org> wrote:
>
>> NOT a guess. Back up what you can, while you can, and start over. Use
>> "fdisk -u" so you can ensure partitions start on multiples of eight (8)
>> sectors. (Modern fdisk uses 1MB alignment by default. Highly
>> recommended.)
>>
>>
>
> So, if I start the partition at sector 64 (rather than 63), that's better,
> right (since 64 is a multiple of 8)? Or is there more math to do and I'm
> still not getting it?
No, you're right. Sector 64 is a reasonable choice for spinning rust
disks. The more modern default of sector 2048 (1MB) is intended to
cover future advances, including solid state drives' erase blocks.
(Although it seems that the best SSDs handle that factor on their own.)
Phil
next prev parent reply other threads:[~2013-04-15 14:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <51681FB2.8060803@turmel.org>
2013-04-12 16:47 ` Odd --examine output Vanhorn, Mike
2013-04-12 17:21 ` Phil Turmel
2013-04-15 13:46 ` Vanhorn, Mike
2013-04-15 14:00 ` Phil Turmel [this message]
2013-04-15 18:42 ` Roy Sigurd Karlsbakk
2013-04-15 20:13 ` John Stoffel
2013-04-15 16:06 ` Oliver Schinagl
2013-04-16 8:58 ` Robin Hill
2013-04-18 11:33 ` Roy Sigurd Karlsbakk
2013-04-18 13:03 ` John Stoffel
2013-04-18 14:22 ` Roy Sigurd Karlsbakk
2013-04-18 11:37 ` Roy Sigurd Karlsbakk
2013-04-18 6:32 ` Sam Bingner
2013-04-11 12:47 Vanhorn, Mike
2013-04-11 20:31 ` Vanhorn, Mike
2013-04-11 21:15 ` Phil Turmel
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