Date: Mon, 02 Jun 2008 14:54:16 -0400 From: kalin m <kalin@el.net> To: Vince Hoffman <jhary@unsane.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: mfi freebsd7 Message-ID: <484441D8.8050207@el.net> In-Reply-To: <484438B1.5020202@unsane.co.uk> References: <4844293F.7020507@el.net> <484438B1.5020202@unsane.co.uk>
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megarc, right... read about it.. here:
# megarc -AllAdpInfo help
usage :
cmd -AllAdpInfo
: prints info of all cards
..... ok .....
# megarc -AllAdpInfo
**********************************************************************
MEGARC MegaRAID Configuration
Utility(FreeBSD)-1.04(03-02-2005)
By LSI Logic Corp.,USA
**********************************************************************
[Note: For SATA-2, 4 and 6 channel controllers, please specify
Ch=0 Id=0..15 for specifying physical drive(Ch=channel, Id=Target)]
Type ? as command line arg for help
No Adapters Found
Error: No MegaRaid Found
?!?!?! does that mean that there is no raid? why then the df output?
the machine is supposed to have 4 250gig SAS drives.
thanks...
Vince Hoffman wrote:
> kalin m wrote:
>> hi all...
>>
>> a hosting facility build a new dedicated server for me and looking at
>> the dmesg i see:
>>
>> mfi0: <LSI MegaSAS 1078> port 0xec00-0xecff mem
>> 0xfc480000-0xfc4bffff,0xfc440000-0xfc47ffff irq 16 at device 0.0 on pci1
>> mfi0: Megaraid SAS driver Ver 2.00
>>
>> for df i get:
>> Filesystem Size Used Avail Capacity Mounted on
>> /dev/mfid0s1a 496M 197M 259M 43% /
>> devfs 1.0K 1.0K 0B 100% /dev
>> /dev/mfid0s1e 496M 12K 456M 0% /tmp
>> /dev/mfid0s1f 661G 636M 608G 0% /usr
>> /dev/mfid0s1d 8.7G 1.4M 8.0G 0% /var
>>
>>
>> i asked for raid1. i cant find too much information about the mfi
>> driver. just that it works with freebsd 7.
>>
>
> you might want to look at sysutils/megarc and possibly
> sysutils/linux-megamgr so you can more closely monitor/investigate
> your array.
>
> Vince
>
>> i'll keep looking but - has anybody successfully deployed production
>> servers using the LSI MegaSAS 1078 in RAID1 on a very busy web server?
>> is there any loss in performance using that hardware in RAID1?
>> any performance loss in RAID1 at all?
>>
>>
>> thanks...
>>
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