Date: Mon, 27 Jul 1998 17:42:06 -0500 From: Richard Brooksby <rb@geodesic.com> To: freebsd-questions@FreeBSD.ORG Cc: Geodesic System Administrators <sysadmins@geodesic.com> Subject: Re: Problems with DPT SCSI controller Message-ID: <l03130302b1e2b23e6e3c@[208.208.142.213]> In-Reply-To: <l03130309b1dba646c475@[208.208.142.213]>
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[Please retain Cc line on replies -- we are not subscribed to this list.] I haven't received any replies to my question about the mysterious errors from the DPT RAID driver. Am I talking to the right group? It would help if I could get in contact with the driver author. These errors sound pretty nasty, but perhaps they're not all that serious. I need to know one way or the other. Thanks. I wrote: > We have a FreeBSD 2.2.6 box which we are using for our mission-critical > information system server. We decided that we needed a RAID for this > machine to reduce the probability of failures which cost a lot of company > time. > > We have a DPT SmartRAID IV Ultra. It appears to work OK, but when we > started transferring our data to the RAID we got kernel messages warning of > DPT errors and "salvaging ... from the jaws of destruction". I've attached > the relevant "dmesg" output below. > > Our kernel configuration contains: > > controller dpt0 > > and > > options DPTOPT # will go away soon > options DPT_MEASURE_PERFORMANCE # just enable for now > options DPT_VERIFY_HINTR # Some hardware must have it! > options DPT_TRACK_CCB_STATES # Some hardware must have it! > options DPT_HANDLE_TIMEOUTS # Some hardware must have it! > options DPT_TIMEOUT_FACTOR=4 # Some hardware needs more > > We've no idea what these do but the comments seemed to imply that switching > them on was a good idea, so we did. > > Are these errors dangerous? What's causing them? Is it a configuration > problem or hardware? How can we reconfigure things to make the RAID > reliable? > > Thanks. > > --- > > dpt0 <DPT Caching SCSI RAID Controller> rev 2 int a irq 5 on pci1:7:0 > dpt0: DPT type 3, model PM3334UW firmware 07L0, Protocol 0 > on port 7410 with 458753MB Write-Back cache. LED = 0000 0000 > dpt0: Enabled Options: > Verify Lost Transactions > Precisely Track State Transitions > Collect Metrics > Handle Timeouts > dpt0 waiting for scsi devices to settle > (dpt0:0:0): "DPT STEFFI 07L0" type 0 fixed SCSI 2 > sd1(dpt0:0:0): Direct-Access sd1 could not mode sense (4). Using ficticious > geometry > 8600MB (17612800 512 byte sectors) > dpt0 waiting for scsi devices to settle > > [...] > > dpt0 ERROR: Marking 153126 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 19280233usec > dpt0: Salvaging Tx 153126 from the jaws of destruction (10000/23860005) > dpt0 ERROR: Marking 543201 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 18033230usec > dpt0 ERROR: Marking 543202 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 18034163usec > dpt0 ERROR: Marking 543203 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 18033132usec > dpt0 ERROR: Marking 543204 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10499053usec > dpt0 ERROR: Marking 543205 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10499995usec > dpt0 ERROR: Marking 543206 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10500881usec > dpt0 ERROR: Marking 543207 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10501761usec > dpt0 ERROR: Marking 543208 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10502645usec > dpt0 ERROR: Marking 543209 (Write (10) [6.1.18]) on c0b0t0u0 > as late after 10503587usec > dpt0: Salvaging Tx 543206 from the jaws of destruction (10000/17320375) > dpt0: Salvaging Tx 543201 from the jaws of destruction (10000/24859218) > dpt0: Salvaging Tx 543202 from the jaws of destruction (10000/24860581) > dpt0: Salvaging Tx 543203 from the jaws of destruction (10000/24859224) > dpt0: Salvaging Tx 543205 from the jaws of destruction (10000/17324756) > dpt0: Salvaging Tx 543204 from the jaws of destruction (10000/17326172) > dpt0: Salvaging Tx 543209 from the jaws of destruction (10000/17332051) > dpt0: Salvaging Tx 543208 from the jaws of destruction (10000/17336467) > dpt0: Salvaging Tx 543207 from the jaws of destruction (10000/17388941) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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