Date: Sat, 15 Feb 2014 23:59:46 +0000 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: Scott Long <scott4long@yahoo.com> Cc: "FreeBSD-scsi@freebsd.org" <freebsd-scsi@freebsd.org> Subject: Re: Wiring down devices with LSI 2308 / mps? Message-ID: <53DEE6652CDBF8E49ECF9FE3@study64.tdx.co.uk> In-Reply-To: <BEE9554F-182B-4FDB-B86E-12AB766749F6@yahoo.com> References: <41337B9333D94F88B9469A60@study64.tdx.co.uk> <BEE9554F-182B-4FDB-B86E-12AB766749F6@yahoo.com>
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--On 15 February 2014 14:14:29 -0700 Scott Long <scott4long@yahoo.com> wrote: > Hi, > > The LSI cards keep a persistent mapping of hard drive serial numbers to > target numbers. That way, when it’s in RAID mode and you pull a drive > from one slot and put it into another slot, it’ll recognize that it’s > the same drive and part of the same array set. It’s incredibly > annoying, and once the persistent mapping is created, it cannot be > cleared just by turning off the RAID mode. What we do at Netflix is use > the a tool provided by LSI to clear out the persistent mapping (and all > of NVRAM, actually), and then turn off the persistence feature. > Unfortunately, you’ll need to contact LSI directly for this tool. Once > you have it, I can share a script that performs the necessary actions. > Contact me off-list if you’d like more information. Ha - at least I know it's not me going mad then :) I'm living with GPT labels at the moment (and labels on the drive caddies) - if that doesn't work out (it's currently "bearable") I'll tap LSI for the 'magic tools', and drop you an email if they give me a copy. You're right though it is *incredibly annoying* (especially when you don't know it's doing it!). -Karl
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