Date: Tue, 11 Jan 2005 17:19:04 -0800 From: Ted Cabeen <ted@impulse.net> To: freebsd-isp@freebsd.org Subject: Re: SATA vs SCSI RAID 5? Message-ID: <87pt0b78c7.fsf@gray.impulse.net> References: <20050111133450.J86996@kod.inch.com> <20050111215039.5B08943D39@mx1.FreeBSD.org>
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"Simon" <simon@optinet.com> writes: > I've been running 5.2.1-R on an isolated data backup server with 3ware ATA > 8 channel RAID with 250GB maxtor drives. It does daily backups of multiple > servers. You can monitor array status using 3amd daemon. So far uptime is > almost a year. It does nothing but backups... I'm not sure how it would > compare VS SCSI RAID under high IO. We only use SCSI RAID on our web > servers which get pretty busy. I'm looking forward to using LSI RAID cards > with 5.3 I'm using one with 4.x, it's been working fine for several months, now. > Unfortunately, the monitoring suite is broken due to some bug and I wish > someone would fix it. I emailed the author, but there was no response. I'm > relying on SAF-TE enclosure to tell me if any of the drives are dead. Frankly, > there isn't much choosing when it comes to SCSI RAID and FreeBSD as of > late. It's either the adaptec, which has a share of it's problems, or LSI which > works fine but lacks monitoring tools. Is there even source out there for the LSI monitoring tools? The only copy of LSI monitoring tools I've ever found was just a binary package. It works great on 4.X though. > On Tue, 11 Jan 2005 13:50:49 -0500 (EST), Gerald wrote: > >>I recently setup a SATA RAID1 box on a highpoint controller. The >>machine is playing very nicely with FreeBSD and doing much better than >>I initially expected. Now I'm considering upgrading a SCSI system to >>another SATA RAID 5 system. >> >>Can anyone tell me about SATA RAID 5 experiences? The company I'm >>looking at purchasing this from is using the Highpoint R1820 controller. >> >>SATA= "putting the 'I' back in RAID" or "magic 8 ball says, 'Ask again >>later."? >> >>For reference on the decision making, the present machine is setup on an >>Adaptec 3200S with all but one of the partitions as RAID1 and the last >>one as RAID5. All the drives in the present system are SCSI SCA 10k RPMs >>I believe. The machine is primarily an apache 1.3/freeBSD 4 web server >>doing 25-30 MB of web traffic at peak 17-20 MB on Average. >> >>Gerald -- Ted Cabeen http://www.pobox.com/~secabeen ted@cabeen.org Check Website or Keyserver for PGP/GPG Key BA0349D2 ted@impulse.net "I have taken all knowledge to be my province." -F. Bacon secabeen@pobox.com "Human kind cannot bear very much reality."-T.S.Eliot secabeen@gmail.com
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