Date: Wed, 1 Oct 2003 13:10:24 -0400 From: "Sorin Chiorean" <sorin@compar.com> To: <freebsd-questions@freebsd.org> Subject: Seagate/Conner CTT8000S problem on FreeBSD Message-ID: <007401c3883e$e7453c10$0b6fa8c0@sorin>
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Hi, I'm running FreeBSD 5.1-RELEASE-p8 on a Pentium II with SCSI adapter =20 ..kernel: ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0xb800-0xb8ff mem 0xe2800000-0xe2800fff irq 10 at device 11.0 on pci0 ..kernel: aic7880: Ultra Wide Channel A, SCSI Id=3D7, 16/253 SCBs and with the following tape: ..kernel: sa0 at ahc0 bus 0 target 6 lun 0 ..kernel: sa0: <CONNER CTT8000-S 1.17> Removable Sequential Access SCSI-2 device ..kernel: sa0: 5.000MB/s transfers (5.000MHz, offset 15) I tried to backup up on a 8Gb(compress)TRAVAN TR-4 tape, 4.4Gb of data and didn't work. I used tar and dump and I ended up with the same problem: I can not backup up more then 4Gba on /dev/sa0 or /dev/nsa0. It's seems that hardware compression doesn't work on FreeBSD. Was working fine on a Windows 2000 server before. I tried to change Compression with "#mt -f /dev/sa0 comp enable" but didn't work (I tried with "comp on" too) This is what I get after a "#mt status": =20 Mode Density Blocksize bpi Compression Current: 0x45 variable 0 disabled ---------available modes--------- 0: 0x45 variable 0 none 1: 0x45 variable 0 none 2: 0x45 variable 0 none 3: 0x45 variable 0 none --------------------------------- Current Driver State: at rest. --------------------------------- File Number: 0 Record Number: 0 Residual Count 28 Can anybody tell me how can I turn on hardware compression for this tape unit or what can I do to be able to buck up more then 4Gb ?? Sorin Chiorean Network Specialist Computer Partners =A0
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