Linux - težave s SCSI kontrolerjem v IBM strežniku

Imamo IBMov strežnik (model in specifikacije: http://www5.pc.ibm.com/us/products.nsf/$wwwPartNumLookup/_84802AX) na katerem teče RedHat 9.

Že pri zagonu javi nekakšne napake v zvezi s SCSI kontrolerjem, se pa kljub temu zadeva normalno zažene in tudi deluje, dokler disk ni obremenjen. Čim se ga pa malo bolj obremeni (inštalacija obsežnejšega programa), se neha odzivati in javi sledeče (iz error loga pobrano):

Mar 8 15:09:41 streznik kernel: VFS: Mounted root (ext2 filesystem).
Mar 8 15:09:41 streznik kernel: SCSI subsystem driver Revision: 1.00
Mar 8 15:09:41 streznik kernel: PCI: Found IRQ 11 for device 02:05.0
Mar 8 15:09:41 streznik kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
Mar 8 15:09:41 streznik kernel: Adaptec aic7892 Ultra160 SCSI adapter
Mar 8 15:09:41 streznik kernel: aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
Mar 8 15:09:41 streznik kernel:
Mar 8 15:09:41 streznik kernel: blk: queue c3664814, I/O limit 4095Mb (mask 0xffffffff)
Mar 8 15:09:41 streznik kernel: Vendor: IBM-ESXS Model: IC35L036UCD210F Rev: S5CJ
Mar 8 15:09:41 streznik kernel: Type: Direct-Access ANSI SCSI revision: 03
Mar 8 15:09:41 streznik kernel: blk: queue c3664a14, I/O limit 4095Mb (mask 0xffffffff)
Mar 8 15:09:41 streznik kernel: Vendor: IBM-ESXS Model: IC35L036UCD210F Rev: S5CJ
Mar 8 15:09:42 streznik kernel: Type: Direct-Access ANSI SCSI revision: 03
Mar 8 15:09:42 streznik kernel: blk: queue c3664e14, I/O limit 4095Mb (mask 0xffffffff)
Mar 8 15:09:42 streznik kernel: (scsi0:A:3:0): parity error detected in Data-in phase. SEQADDR(0x8b) SCSIRATE(0x0)
Mar 8 15:09:42 streznik kernel: (scsi0:A:3:0): parity error detected in Data-in phase. SEQADDR(0x89) SCSIRATE(0x0)
Mar 8 15:09:42 streznik kernel: (scsi0:A:3:0): parity error detected in Data-in phase. SEQADDR(0x89) SCSIRATE(0x0)
Mar 8 15:09:42 streznik kernel: (scsi0:A:8:0): parity error detected in Data-in phase. SEQADDR(0x53) SCSIRATE(0x0)
Mar 8 15:09:42 streznik kernel: scsi0:A:0:0: Tagged Queuing enabled. Depth 253
Mar 8 15:09:42 streznik kernel: scsi0:A:1:0: Tagged Queuing enabled. Depth 253
Mar 8 15:09:42 streznik kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Mar 8 15:09:42 streznik kernel: Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
Mar 8 15:09:42 streznik kernel: (scsi0:A:0): 40.000MB/s transfers (20.000MHz, offset 63, 16bit)
Mar 8 15:09:42 streznik kernel: SCSI device sda: 71096640 512-byte hdwr sectors (36401 MB)
Mar 8 15:09:42 streznik kernel: Partition check:
Mar 8 15:09:42 streznik kernel: sda: sda1 sda2 sda3
Mar 8 15:09:42 streznik kernel: (scsi0:A:1): 40.000MB/s transfers (20.000MHz, offset 63, 16bit)
Mar 8 15:09:42 streznik kernel: SCSI device sdb: 71096640 512-byte hdwr sectors (36401 MB)
Mar 8 15:09:42 streznik kernel: sdb: sdb1
Mar 8 15:09:42 streznik kernel: Journalled Block Device driver loaded
Mar 8 15:09:42 streznik kernel: kjournald starting. Commit interval 5 seconds
Mar 8 15:09:42 streznik kernel: EXT3-fs: mounted filesystem with ordered data mode.

Gonilniki za SCSI so najnovejši, BIOS tud, RedHat 9 je pa ostal tak, kot je v osnovi.

Kakšne ideje, kaj bi še bilo možno narediti?