Seagate ST3655N Manual de usuario descargar pdf (Pagina 129)

Using S.M.A.R.T. Disk Monitor 123

# time ./smartmon-ux -scrubq -scrubt /dev/rdsk/c4t15d0s0

Discovered SEAGATE ST3146855SS S/N "3LN29ZZ5" on /dev/rdsk/c4t15d0s0 (Not Enabling SMART)(140014 MB)

Background Media Scan Report @ Tue Jun 10 12:18:51 2008

Accumulated power-on minutes: 134911 [94 days]

Number of background scans performed: 37

Background scanning status: medium scan halted, waiting for interval timer expiration

Background scan percentage completed: 0.00

Defect# PowerOnMins HexBlockNumber State Reassignment Status AdditionalInfo

0 133 37fc7 OK recovered via in-place rewrite Recovered error Recovered data with retries

1 117114 2bf620f OK recovered via in-place rewrite Recovered error Recovered data with retries

2 130954 7b ERR waiting for WRITE Controller/drive hardware failed Track following error

3 130954 1c8 ERR waiting for WRITE Controller/drive hardware failed Track following error

4 130954 37fc7 OK recovered via in-place rewrite Recovered error Recovered data with retries

5 131392 37fc8 OK recovered via in-place rewrite Recovered error Recovered data with retries

6 133380 38039 OK recovered via in-place rewrite Recovered error Recovered data with retries

7 133792 d699104 OK recovered via in-place rewrite Recovered error Recovered data with retries

8 134753 dccde66 OK recovered via in-place rewrite Recovered error Recovered data with retries

9 134755 e2bede7 OK recovered via in-place rewrite Recovered error Recovered data with retries

Program Ended.

real 0m0.25s

user 0m0.00s

sys 0m0.02s

1.34.1 Data Integrity Test

Release 1.27 introduces two new destructive integrity tests, -scrubdi and -scrubdiv. They are used to do a write /

read / compare test on every byte of the selected device. The tests are not designed for ATA family disk drives. They

are applicable to SCSI, FC random-access devices. (This includes USB memory sticks and optical R/W media). The

command will be rejected if you attempt to run it on ATA family disk drives.

These tests were designed with cooperation from RAID controller and subsystem manufacturers. The idea was to

create a whole-device data integrity test that would find if there were any situations where the data read back didn't

match the data written, or if any I/Os didn't complete without incident the first time they were tried. The reason for the

data alignment pattern is to make sure that there was a marker on every block so you could discover if there was a

problem that might shift the data left or right a few bits or bytes.

Typical O/S-assisted read/write tests (such as using dd if=/dev/zero of=/dev/dsk) write the same byte to the

target device. If you are writing zeros to every block on a device, then how do you know if anything is skipped,

especially if the disk had mostly zeros written to it before you began the test? That is why we designed the test to let

you supply a 4-byte pattern, and why we put markers in the data so we know what block number we are supposed to

be reading and writing to.

Usage

smartmon-ux -scrubdi [-16 | -12 ] PATTERN SINGLEYN CHUNKSIZE DeviceName

smartmon-ux -scrubdiv [-16 | -12 ] PATTERN SINGLEYN CHUNKSIZE DeviceName

The PATTERN field must be a 4-byte hex value, as in E66EF0F0. This pattern will be repeated throughout the device.

If you supplied this value then the disk or RW optical media would be written with E6 6E F0 F0 E6 6E ... until the last

byte of the device. (Exception is that at the end of every block (typically 512 bytes), the last 8 bytes is going to be a

64-bit value for the current block number. Other things to know about the PATTERN are:

· Assuming you have a disk formatted to the standard 512 byte block size, then bytes #504 - #511 on the first block

of the disk would contain 00 00 00 00 00 00 00 00. The last byte of the 2nd block would end with 00 01, the next

block ends with 00 02, and so on.

· If your disk drive is formatted on a 520 byte pattern, then this pattern would be written on byte numbers #512 - #519

on every block.

· If you want every block of the disk to be zeroed, with the exception of the end-of-block sequence number, then set

the PATTERN to 00000000.

The SINGLEYN field can be used to control whether or not the test is done in a single pass. Enter "Y" to instruct the

118 118 123 123 124 124

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