From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: [sucess] upgrading LSI SAS9211-8i fw IR->IT Date: Fri, 3 Nov 2017 08:54:20 +0800 Message-ID: <31706ffc-3a81-b844-261e-a84dd8c01deb@fnarfbargle.com> References: <08feefcc-14d0-e7ec-aa23-927ecbb63ac3@eyal.emu.id.au> <34e5cc74-2cb2-5059-0e11-8f26a8bee223@eyal.emu.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <34e5cc74-2cb2-5059-0e11-8f26a8bee223@eyal.emu.id.au> Content-Language: en-US Sender: linux-raid-owner@vger.kernel.org To: Eyal Lebedinsky , list linux-raid List-Id: linux-raid.ids On 02/11/17 18:51, Eyal Lebedinsky wrote: > What I noted so far: > - the heat sink feels very hot even after short usage. Yeah, they do get warm. Best to make sure you have a bit of airflow over them. It doesn't take much air movement to keep temps in check. > - the disks were now in a different order, pretty much reverse order. >   I am not sure the order will remain fixed (by port number?) or > variable (as the disks spin up). The driver scans them in port/slot order, and apparently in order of increasing pci address in the case of multiple cards. In my case where I have staggered spinup enabled it spins them up in groups and then waits for them in order, so things don't tend to move around unless you shift hardware about or a drive fails. Make sure you do a periodic lsdrv just for records sake, but as yet I've not needed it. I keep a spreadsheet which lists which drive S/N is in which physical slot so when something happens I can just look up which drive needs to be popped without risk of pulling the wrong disk. I swapped out a set of highpoint controllers for these LSI units back in 2011 and it was the best thing I ever did for storage speed and reliability.