Date: Thu, 15 Dec 2011 11:40:16 -0500 From: Andrew Boyer <aboyer@averesystems.com> To: Hugo Silva <hugo@barafranca.com>, Jan Mikkelsen <janm-freebsd-hackers@transactionware.com> Cc: freebsd-hackers@freebsd.org Subject: Re: mfi (Dell H700) + hot swapping doesn't appear to work with RC1 Message-ID: <3A13B3B1-4CDE-4D5A-A6F3-E7DC5BB0E4E3@averesystems.com> In-Reply-To: <4EEA1A64.1040104@barafranca.com> References: <4EE8A005.5030607@barafranca.com> <9317551F-CBE0-4368-B798-498E58E240B2@sarenet.es> <2EA3FFF4-E6A2-4371-8891-26E99C551C67@transactionware.com> <4EEA1215.8060507@barafranca.com> <4EEA1A64.1040104@barafranca.com>
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On Dec 15, 2011, at 4:19 AM, Jan Mikkelsen wrote: > For the mfi controllers I have been testing recently (MegaRAID = 9261-8i), you need to install the sysutils/megacli port, and use that to = clear the "foreignness" of the disk you just added. Something like: >=20 > MegaCli -CfgForeign -Clear -a0 I don't think that's what you want. You want to use -Import, not = -Clear, to keep your data intact. On Dec 15, 2011, at 11:03 AM, Hugo Silva wrote: > On 12/15/11 15:28, Hugo Silva wrote: >> As Borja said, part of the difficulty is the H700 abstracting a = single >> disk as a RAID-0, I guess. So far I've been unable to find a way to >> bring the drive back, except by rebooting and recreating. >=20 > Turns out no interaction is needed after reboot. It was something else > unrelated. The main issue then is convincing the controller to once > again accept the hard disk. I'm going through MegaCli "documentation" > (ie --help).. it's not a pretty place. I'm not sure it would even be possible to come up with a worse = interface. It boggles the mind. I recommend you always run with this configuration: # MegaCli -AdpSetProp AutoEnhancedImportEnbl -aALL # MegaCli -AdpSetProp MaintainPdFailHistoryEnbl -0 -aALL AutoEnhancedImportEnbl will bring the foreign disk back in on a reboot. = LSI recommends turning off MaintainPdFailHistory when using single-disk = RAID0 configurations. To bring in a foreign disk without rebooting: # MegaCli -CfgForeign -Scan -aALL # MegaCli -CfgForeign -Import [x] -aN (where x is the config number = listed in the scan, and N is the adapter number) Adding these capabilities to mfiutil is on my list of things to do, but = it's not ready yet. Has anyone managed to get the real JBOD mode working on this controller? = It advertises support in the firmware but doesn't seem to do anything. = The documentation only lists JBOD mode as a feature of the lower-end = controllers. Hope this helps. -Andrew -------------------------------------------------- Andrew Boyer aboyer@averesystems.com
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