Date: Wed, 03 Sep 2003 08:12:38 -0500 From: Peter Elsner <peter@servplex.com> To: jesse reynolds <jesse@va.com.au> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: RAID1 is DEGRADED, but which disk is faulty? Message-ID: <5.2.0.9.2.20030903081202.011be588@mail.servplex.com> In-Reply-To: <a06001a02bb7b8fd4603a@[10.0.1.30]>
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Try rebuilding the array... atacontrol rebuild ar0 See if that helps... Peter Elsner At 10:45 PM 9/3/2003 +1000, you wrote: >Hi > >How do you tell which disk has problems in a hardware RAID1 array? My >machine has been up for nearly six months, and only the last three weeks >of messages logs are retained. There is nothing any in the last three >weeks of system logs about any kind of hardware error, or warning, or >anything mentioning ar0, ad4, or ad6. > >atacontrol is showing a DEGRADED status of the mirror: > ># atacontrol status ar0 >ar0: ATA RAID1 subdisks: ad4 ad6 status: DEGRADED > > >How does one tell which disk is faulty? Or is it possible that they've >become out of sync and need rebuilding, in which case which one do I >detach and reattach? > >I'm scared to reboot as it's a running server. What can I do???? > >Cheers > >Jesse > >PS: > >FreeBSD 4.6.2-RELEASE > >atapci1: <Promise ATA100 controller> port >0xdc00-0xdc3f,0xe000-0xe003,0xe400-0xe407,0xe800-0xe803,0xec00-0xec07 mem >0xdffe0000-0xdfffffff irq 11 at device 16.0 on pci0 > >ar0: 76293MB <ATA RAID1 array> [9726/255/63] status: READY subdisks: > 0 READY ad4: 76319MB <ST380021A> [155061/16/63] at ata2-master UDMA100 > 1 READY ad6: 76319MB <ST380021A> [155061/16/63] at ata3-master UDMA100 > > ># atacontrol list >ATA channel 0: > Master: no device present > Slave: no device present >ATA channel 1: > Master: acd0 <LG DVD-ROM DRD-8160B/1.01> ATA/ATAPI rev 0 > Slave: no device present >ATA channel 2: > Master: ad4 <ST380021A/3.19> ATA/ATAPI rev 5 > Slave: no device present >ATA channel 3: > Master: ad6 <ST380021A/3.19> ATA/ATAPI rev 5 > Slave: no device present > >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" Peter Elsner <peter@servplex.com> Vice President Of Customer Service (And System Administrator) 1835 S. Carrier Parkway Grand Prairie, Texas 75051 (972) 263-2080 - Voice (972) 263-2082 - Fax (972) 489-4838 - Cell Phone
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