From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: sata_nv and RAID1 Date: Tue, 14 Jun 2005 19:07:08 -0400 Message-ID: <42AF631C.1050806@tmr.com> References: <200506111613.42962.dvadell@lantech.com.ar> <20050611192606.GA4055@pentafluge.infradead.org> <42AB49BC.50104@tls.msk.ru> <42AD2B85.30303@pobox.com> <42AD74BD.8050704@tls.msk.ru> <62b0912f05061414116f7afedc@mail.gmail.com> <42AF4E17.2040900@tls.msk.ru> <62b0912f0506141526358647d0@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <62b0912f0506141526358647d0@mail.gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Molle Bestefich Cc: Michael Tokarev , linux-raid@vger.kernel.org List-Id: linux-raid.ids Molle Bestefich wrote: >Michael Tokarev wrote: > > >>Molle Bestefich wrote: >> >> >>>Michael Tokarev wrote: >>> >>> >>> >>>>Without proper error handling [...] >>>>linux SATA subsystem isn't ready for production, >>>>and people should not rely on it *now*. >>>> >>>> >>Note there was an "if" in that [...] -- "IF I/O errors are >>*really* not handled properly, linux SATA subsystem isn't >>ready etc" >> >> > >Oh, ok. Didn't seem relevant. Sorry. > > > > >>>As long as disks aren't removed, it's OK for production.. >>> >>>But I'll agree with anyone who says that IDE under Linux just sucks >>>donkey ass compared to IDE under Windows. With Windows 2K and later, >>>unplugging both SATA and PATA devices Just Works (tm). I'm having a >>>hard time figuring how this works: there's enough people supporting >>>Linux to build a complete web-enabled SCM system (git) in a couple of >>>weeks, but noone has bothered to fix this glaring flaw for the past 5 >>>years? What gives? >>> >>> >>Well.. I don't want to start a flamewar, but I tend to disagree. >>I for one don't care (for now) about SATA and hot[un]plug for >>harddrives. >> >> > >So you don't care that your Linux system will deadlock if a PATA disk >is removed, for instance? Just an example, one that I've seen happen >a couple of times. Never seen it with Windows, it just tells you that >the disk is gone. > Actually I suspect most Linux users are smart enough not to pull a PATA drive out while in use, and it works just fine if you offline the drive before removal. I may be wrong recently, it seems that the ability to disable the interface was taken out of either hdparm or a recent kernel. I read about, exchange comments with Alan Cox, and I don't recall the details. There may have been a step backward, hopefully just a brain fart and not a deliberate decision to disable hot swap. -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979