Newbie:Problems with SCSI root disk

Hello
I have periodic problems with no matter what disk I put in my root partition. My Sun has several disks, so I can take another disk not being used and configure it as my new root disk, installing Solaris root on it.
But when, this way, I replace the disk by another "fresh" disk and reinstall Solaris all goes Ok during some time (days or months) until suddenly I get I/O Errors allways in that disk.
I use a E250 with Solaris8. The problem also arises with Solaris7.
If I do a probe-scsi-all at ok prompt I frequently see hardware errors in that disk. All those errors where not present previously when my disk wan't the root.
What is corrupting my disks a I use them?
Am I missing something when I put a new disk? Should I change the ID of my previous SCSI disk?
If so, how?
Thanks

Are you using the disks in the same slot? It may be the controller....

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Primary Bootstrap.
U-Boot 1.1.4
Custom AST2100 U-Boot 3.0 (Aug 17 2010 - 01:30:05) r58107
DRAM: 119 MB
Flash bank 0 at 10000000 has 32MB in 256 sectors (chipSize 1<<25, ratio 1, bufSz
1024).
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VUART1 at port 0x03f8, SerIRQ[4] disabled
VUART2 at port 0x02f8, SerIRQ[3] disabled
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board_findGpioNum(): ERROR, 'BIOS_TOP_BLOCK_LOCK' does not match any pin.
board_findGpioNum(): ERROR, 'SP_PECI_ENABLE' does not match any pin.
H/W: Lynxplus Service Processor; SOC: AST2100 Rev. 02 ('A3')
PWC_SP_Broken_OD = 0; ARM restart caused by: power-on
The host is OFF(S5) (hostWantsPwr=0, powerGood=0,
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Reset straps=0x8c819180, def. H-PLL=264 MHz, CPU/AHB=2:1, boot CS0# normal spe
ed
PCI w/VGA noVBIOS; NOR 38ns/byte; DRAM clock is M-PLL: 264 MHz (DDR2-528)
DRAM: 128MB data - 8MB VGA, 32-bit noECC, 2 BA 10 CA, CL=4 BL=4 ap=1, 61440 us
refr
Board Revision - 8d
Date: 2011-01-19 (Wednesday) Time: 7:04:21
Reading FRUID...Valid CRC.
ethaddr=00:21:28:3D:BD:9A
eth1addr=00:21:28:3D:BD:9B
Net: MAC1 PHY not ready faradaynic#0, faradaynic#1
Enter Diagnostics Mode ['q'uick/'n'ormal(default)/e'x'tended(manufacturing mode)
] ..... 0
Diagnostics Mode - NORMAL
<DIAGS> Memory Data Bus Test ... PASSED
<DIAGS> Memory Address Bus Test ... PASSED
I2C Probe Test - Motherboard
Bus Device Address Result
=== ============================ ======= ======
2 Sys FRUID (U3003) 0xA0 PASSED
2 Power CPLD (U3301) 0x4E PASSED
2 CPU0 Fault LED's (U3001) 0x40 PASSED
2 CPU1 Fault LED's (U3002) 0x42 PASSED
2 PCA9555 (Misc) (U3005) 0x44 PASSED
2 DIMM IMAX (U3102) 0x12 PASSED
6 Bank Panel Led's (U2701) 0xC6 PASSED
6 DS1338(RTC) ( U803) 0xD0 PASSED
6 Temp Sensor1(LM75) (U3011) 0x90 PASSED
6 Temp Sensor2(LM75) (U3012) 0x92 PASSED
6 Temp Sensor3(LM75) (U3010) 0x94 PASSED
I2C Probe Test - Chassis(2U HYDE24)
PDB Board
Bus Device Address Result
=== ============================ ======= ======
1 PCA9548 Mux (U0202) 0xE0 PASSED
1 PDB FRUID (U0203) 0xAA PASSED
1 MAX7313 (U0201) 0x40 PASSED
1 MAX7315 (U1001) 0x46 PASSED
Power Supply 0
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 0 PS 0 FRUID ( - ) 0xAC PASSED
1 0 PS 0 CTRL ( - ) 0x7C PASSED
Power Supply 1
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 1 PS 1 FRUID ( - ) 0xAC PASSED
1 1 PS 1 CTRL ( - ) 0x7C PASSED
Unified Fan Module
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 2 FT 0 FRUID (U0203) 0xAC PASSED
1 2 FT 0 MAX7313 (U0201) 0x42 PASSED
1 2 FT 0 ADT7462 (U0202) 0xB8 PASSED
1 3 FT 1 MAX7313 (U0501) 0x42 PASSED
1 3 FT 1 ADT7462 (U0502) 0xB8 PASSED
24 Disk Backplane
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 4 BP MAX7313 ( U8) 0x44 PASSED
1 4 BP FRUID ( U6) 0xAC PASSED
LSI Daughter Card
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 4 EXP FRUID ( U07) 0xA0 PASSED
1 4 EXP Tmp Sens ( U04) 0x98 PASSED
1 4 EXP PCA9538 ( U10) 0xE6 PASSED
1 4 EXP EMP570 ( U05) 0x50 PASSED
Connector Board
BUS Port DEVICE Address Result
=== ==== ==================== ======= ======
1 4 CONN FRUID ( U05) 0xA2 PASSED
<DIAGS> PHY #0 R/W Test ... PASSED
<DIAGS> PHY #0 Link Status ... FAILED
MAC1 PHY not ready <DIAGS> ETHERNET PHY #0, Internal Loopback Test ... RX error
status = 0xB00905C0
FAILED
No data received
<DIAGS> USB 1.1 Test ... PASSED
<DIAGS>Access to BIOS Flash ... PASSED
<DIAGS> Testing PowerCPLD version ... PASSED
checking for abnormal reboots: 0:0.
abnormal reboot found -- too long, ignore
Booting linux in 3 seconds...
Un-Protect Flash Bank # 1
flctrl: Recovery U-Boot (r58107) at 0x10040000 is valid (min. r51654).
flctrl: Current U-Boot is not the main one.
bootpkg: Not safe to boot ILOM (stat=1). Check Preboot "vers" command,
then reload ILOM ("net flash") as needed.
ILOM Pre-boot Menu
Type "h" and [Enter] for a list of commands, or "?" [Enter] for
command-line key bindings. Type "h cmd" for summary of 'cmd' command.
Idle time-out is disabled. Set 'bootretry' to enable it.
This is Recovery U-Boot. Use "vers all" to check flash images.
Preboot> vers all
Main ILOM image at 0x100a0000:
Service Processor Firmware
Version = 3.0.9.27, for SP type 52
Date ='Tue Aug 17 01:54:07 EDT 2010', Build ='r58107'
Name ='sysbios'
uboot @0a0000 OK, kernel @102000 OK, root @20d684 OK,
sysbios @c9b6c4 OK, pwrseq @d51aa2 OK, pbsw @d6096c OK
coredump @1500000 8192 KiB, persist @1d00000 2048 KiB, params @1f00000 1024
KiB
Recovery firmware and data:
Normal U-Boot at 0x100a0000:
Date ='Aug 17 2010', Build ='r58107'
uboot @0a0000 OK
Recovery U-Boot at 0x10040000:
Date ='Aug 17 2010', Build ='r58107'
uboot @040000 OK
Primary Bootstrap build: r52205
Permanent environment: not found

I don't think it is. The jumper you saw is likely the ILOM jumper. The ILOM is different than the BUI(OS) password so they can be reset/changed independently.

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http://support.apple.com/kb/ph5821
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http://support.apple.com/kb/PH5836
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Newbie:Problems with SCSI root disk

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