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Re: tools support for non-512 byte sector sizes

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From: Martin K. Petersen <martin.petersen@...>
To: James Bottomley <James.Bottomley@...>
Cc: Matthew Wilcox <matthew@...>, Ric Wheeler <rwheeler@...>, <linux-scsi@...>, <linux-ide@...>, Jim Meyering <jim@...>, <linux-kernel@...>, Jeff Garzik <jeff@...>, Matt Domsch <Matt_Domsch@...>
Subject: Re: tools support for non-512 byte sector sizes
Date: Tuesday, July 29, 2008 - 2:48 pm

>>>>> "James" == James Bottomley <James.Bottomley@HansenPartnership.com> writes:

James> The problem, which ata_ram also suffers, is that the tools we
James> most need to test are the ones for manipulating non volatile
James> characteristics (like partition tables).  We'd really like the
James> disk contents to survive reboot for this ...

Yeah, I should add that I wanted persistence too.  I went through a
whole stack (well, 5-6 or so) fibre channel drives from various
vendors and attempted to low-level format them to 4KB sectors.  Most
of them laughed in my face.  One of them tried to comply and
irreparably confused its firmware in the process.

Just yesterday I received a couple of prototype drives in the mail.
I'll ask the vendor whether they support 4KB and if so I'll give them
a whirl.

-- 
Martin K. Petersen	Oracle Linux Engineering

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Messages in current thread:
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Tue Jul 29, 2:26 pm)
Re: tools support for non-512 byte sector sizes, Jeff Garzik, (Tue Jul 29, 5:54 pm)
Re: tools support for non-512 byte sector sizes, Martin K. Petersen, (Tue Jul 29, 2:41 pm)
Re: tools support for non-512 byte sector sizes, James Bottomley, (Tue Jul 29, 2:37 pm)
Re: tools support for non-512 byte sector sizes, Vladislav Bolkhovitin, (Wed Jul 30, 1:51 am)
Re: tools support for non-512 byte sector sizes, Martin K. Petersen, (Tue Jul 29, 2:48 pm)
Re: tools support for non-512 byte sector sizes, Matt Domsch, (Wed Jul 30, 9:51 am)
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Fri Aug 1, 12:11 pm)
Re: tools support for non-512 byte sector sizes, Matt Domsch, (Tue Aug 5, 12:57 pm)
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Tue Aug 5, 12:54 pm)
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Tue Aug 5, 12:57 pm)
Re: tools support for non-512 byte sector sizes, Jim Meyering, (Wed Jul 30, 1:16 pm)
Re: tools support for non-512 byte sector sizes, Matt Domsch, (Wed Jul 30, 1:29 pm)
Re: tools support for non-512 byte sector sizes, Pavel Machek, (Sat Aug 9, 9:21 am)
Re: tools support for non-512 byte sector sizes, Theodore Tso, (Wed Jul 30, 2:13 pm)
Re: tools support for non-512 byte sector sizes, Ric Wheeler, (Wed Jul 30, 2:28 pm)
Re: tools support for non-512 byte sector sizes, Theodore Tso, (Wed Jul 30, 2:45 pm)
Re: tools support for non-512 byte sector sizes, Alan Cox, (Wed Jul 30, 1:24 pm)
Re: tools support for non-512 byte sector sizes, Ric Wheeler, (Tue Jul 29, 2:54 pm)
Re: tools support for non-512 byte sector sizes, James Bottomley, (Tue Jul 29, 2:56 pm)
Re: tools support for non-512 byte sector sizes, FUJITA Tomonori, (Tue Jul 29, 7:41 pm)
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Tue Jul 29, 2:42 pm)
Re: tools support for non-512 byte sector sizes, James Bottomley, (Tue Jul 29, 2:44 pm)
Re: tools support for non-512 byte sector sizes, Matthew Wilcox, (Tue Jul 29, 2:50 pm)
Re: tools support for non-512 byte sector sizes, James Bottomley, (Tue Jul 29, 3:00 pm)