Re: Question about optimal io size

[psusi]

Because you can't start at 0 because the partition table is there, so it gets rounded to somewhere that is not aligned.

Sent from my android device.

-----Original Message-----
From: Erwan Velu <address@hidden>
To: "Bendtsen, Jon" <address@hidden>
Cc: "<address@hidden>" <address@hidden>
Sent: Thu, 08 Aug 2013 10:50 AM
Subject: Re: Question about optimal io size

In fact, with percent it works.

My question was more why does starting from 0 isn't considered as valid for big optimal_io_size.

When my disk does have an optimal_io_size=256K it works, with a 1MB optimal_io_size it fails.

2013/8/8 Bendtsen, Jon <address@hidden>

On 08/08/2013, at 15.10, Erwan Velu <address@hidden>

 wrote:

> Hi folks,
>
> When doing a "parted -a optimal /dev/sdb mkpart primary 0 100%", parted tells me that the partition will not be optimal.

Try "parted -a optimal /dev/sdb unit % mkpart primary 0 100%"



JonB