Date: Fri, 16 Dec 2011 16:47:34 +1100 From: Jan Mikkelsen <janm-freebsd-hackers@transactionware.com> To: Andrew Boyer <aboyer@averesystems.com> Cc: freebsd-hackers@freebsd.org, Hugo Silva <hugo@barafranca.com> Subject: Re: mfi (Dell H700) + hot swapping doesn't appear to work with RC1 Message-ID: <CA8A5F51-866E-4F85-985A-1A52B9601BCF@transactionware.com> In-Reply-To: <3A13B3B1-4CDE-4D5A-A6F3-E7DC5BB0E4E3@averesystems.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> <3A13B3B1-4CDE-4D5A-A6F3-E7DC5BB0E4E3@averesystems.com>
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On 16/12/2011, at 3:40 AM, Andrew Boyer wrote: >=20 > On Dec 15, 2011, at 4:19 AM, Jan Mikkelsen wrote: >=20 >> 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 >=20 > I don't think that's what you want. You want to use -Import, not = -Clear, to keep your data intact. OK. When I did a -Clear and recreated the drive as a single disk raid0 = volume, the data was still there, but I wanted it to go away. > On Dec 15, 2011, at 11:03 AM, Hugo Silva wrote: >=20 >> 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. >=20 > I'm not sure it would even be possible to come up with a worse = interface. It boggles the mind. I agree. It is insanely bad. > I recommend you always run with this configuration: >=20 > # MegaCli -AdpSetProp AutoEnhancedImportEnbl -aALL > # MegaCli -AdpSetProp MaintainPdFailHistoryEnbl -0 -aALL >=20 > AutoEnhancedImportEnbl will bring the foreign disk back in on a = reboot. LSI recommends turning off MaintainPdFailHistory when using = single-disk RAID0 configurations. What does PD Fail History actually do? > Adding these capabilities to mfiutil is on my list of things to do, = but it's not ready yet. Thanks. > 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. You mean using "MegaCli -PDMakeJBOD"? No, it doesn't work from me on the = 9281-8i. I get "Failed to change PD state". Single disk RAID-0 works = fine. > Hope this helps. It does, thank you. Regards, Jan.
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