User:Tingo/setblocksize - Revision history

Tingo: /* Machine info */ fixed a spelling error

2018-03-29T13:49:01Z

Machine info: fixed a spelling error

← Older revision		Revision as of 13:49, 29 March 2018
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	Since my experiments with sg_format (see the [[User:Tingo/sg3 utils\|sg3_utils]] page) failed, I decided I had nothing to loose by testing this tool as well.		Since my experiments with sg_format (see the [[User:Tingo/sg3 utils\|sg3_utils]] page) failed, I decided I had nothing to loose by testing this tool as well.
	== Machine info ==		== Machine info ==
	I used an old machine I had lying, ~~instalaaed~~ an Adaptec AVA-2904 SCSI card into it, a hard drive and installed Fedora 24 serve on it.		I used an old machine I had lying, installed an Adaptec AVA-2904 SCSI card into it, a hard drive and installed Fedora 24 serve on it.
	[tingo@kg-htpc ~]$ cat /etc/fedora-release		[tingo@kg-htpc ~]$ cat /etc/fedora-release
	Fedora release 24 (Twenty Four)		Fedora release 24 (Twenty Four)
	[tingo@kg-htpc ~]$ uname -a		[tingo@kg-htpc ~]$ uname -a
	Linux kg-htpc.kg4.no 4.5.5-300.fc24.i686 #1 SMP Thu May 19 13:42:13 UTC 2016 i686 i686 i386 GNU/Linux		Linux kg-htpc.kg4.no 4.5.5-300.fc24.i686 #1 SMP Thu May 19 13:42:13 UTC 2016 i686 i686 i386 GNU/Linux

	== Drive info ==		== Drive info ==
	The drive is the same old Seagate ST31200N that I managed to "brick" with sg_format.		The drive is the same old Seagate ST31200N that I managed to "brick" with sg_format.

Tingo: /* fdisk */ corrected a spelling error

2016-09-07T18:05:54Z

fdisk: corrected a spelling error

← Older revision		Revision as of 18:05, 7 September 2016
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	Sector size (logical/physical): 1024 bytes / 1024 bytes		Sector size (logical/physical): 1024 bytes / 1024 bytes
	I/O size (minimum/optimal): 1024 bytes / 1024 bytes		I/O size (minimum/optimal): 1024 bytes / 1024 bytes
	Another vote for 1024 byte blocks (~~ore~~ "sectors").		Another vote for 1024 byte blocks (or "sectors").

	== History ==		== History ==

Tingo: /* history */ added entry about 'fdisk -l'

2016-09-07T18:03:54Z

history: added entry about 'fdisk -l'

← Older revision		Revision as of 18:03, 7 September 2016
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	== History ==		== History ==
			:2016-09-07: I did 'fdisk -l' on the drive, and documented the output.
	:2016-09-06: initial testing with setblocksize.		:2016-09-06: initial testing with setblocksize.

	[[Category:Seagate]] [[Category:ST31200N]] [[Category:SCSI]] [[Category:Hard drive]] [[Category:Testing]] [[Category:setblocksize]]		[[Category:Seagate]] [[Category:ST31200N]] [[Category:SCSI]] [[Category:Hard drive]] [[Category:Testing]] [[Category:setblocksize]]

Tingo: /* check the result */ added fdisk -l output

2016-09-07T18:02:49Z

check the result: added fdisk -l output

← Older revision		Revision as of 18:02, 7 September 2016
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	So it looks like setblocksize really managed to change the drive.		So it looks like setblocksize really managed to change the drive.

			==== fdisk ====
			fdisk -l output was requested. Here it is:
			[tingo@kg-htpc ~]$ sudo fdisk -l /dev/sdb
			Disk /dev/sdb: 1 GiB, 1100381184 bytes, 1074591 sectors
			Units: sectors of 1 * 1024 = 1024 bytes
			Sector size (logical/physical): 1024 bytes / 1024 bytes
			I/O size (minimum/optimal): 1024 bytes / 1024 bytes
			Another vote for 1024 byte blocks (ore "sectors").

	== History ==		== History ==

Tingo: added history section, and first entry

2016-09-07T17:58:32Z

added history section, and first entry

← Older revision		Revision as of 17:58, 7 September 2016
Line 114:		Line 114:

	So it looks like setblocksize really managed to change the drive.		So it looks like setblocksize really managed to change the drive.

			== History ==
			:2016-09-06: initial testing with setblocksize.

	[[Category:Seagate]] [[Category:ST31200N]] [[Category:SCSI]] [[Category:Hard drive]] [[Category:Testing]] [[Category:setblocksize]]		[[Category:Seagate]] [[Category:ST31200N]] [[Category:SCSI]] [[Category:Hard drive]] [[Category:Testing]] [[Category:setblocksize]]

Tingo: created User:Tingo/setblocksize page

2016-09-06T21:39:16Z

created User:Tingo/setblocksize page

New page

[http://micha.freeshell.org/scsi/ setblocksize] is created by Michael Bauerle. It is a tool to reformat a SCSI disk with new block size.

setblocksize requires GNU/Linux with sg driver installed - connect the disk to a machine running this OS to reformat it.

Since my experiments with sg_format (see the [[User:Tingo/sg3 utils|sg3_utils]] page) failed, I decided I had nothing to loose by testing this tool as well.
== Machine info ==
I used an old machine I had lying, instalaaed an Adaptec AVA-2904 SCSI card into it, a hard drive and installed Fedora 24 serve on it.
[tingo@kg-htpc ~]$ cat /etc/fedora-release
Fedora release 24 (Twenty Four)
[tingo@kg-htpc ~]$ uname -a
Linux kg-htpc.kg4.no 4.5.5-300.fc24.i686 #1 SMP Thu May 19 13:42:13 UTC 2016 i686 i686 i386 GNU/Linux
== Drive info ==
The drive is the same old Seagate ST31200N that I managed to "brick" with sg_format.
[tingo@kg-htpc ~]$ dmesg | grep sd
[...]
[ 19.581428] sd 2:0:0:0: Attached scsi generic sg1 type 0
[ 19.599840] sd 2:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 19.599851] sd 2:0:0:0: [sdb] Sense Key : Medium Error [current]
[ 19.599858] sd 2:0:0:0: [sdb] Add. Sense: Medium format corrupted
[ 19.602945] sd 2:0:0:0: [sdb] Write Protect is off
[ 19.602955] sd 2:0:0:0: [sdb] Mode Sense: 9f 00 00 08
[ 19.606941] sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 19.626816] sd 2:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 19.626828] sd 2:0:0:0: [sdb] Sense Key : Medium Error [current]
[ 19.626835] sd 2:0:0:0: [sdb] Add. Sense: Medium format corrupted
[ 19.635282] sd 2:0:0:0: [sdb] Attached SCSI disk
I edited out the info about sda (the os drive) since it is not relevant here
== Compiling setblocksize ==
I had to install both kernel-headers and gcc in F24 (Fedora 24) before I could compile the program. Commands:
[tingo@kg-htpc setblocksize]$ sudo dnf install kernel-headers
[tingo@kg-htpc setblocksize]$ sudo dnf install gcc
after that it was a simple make command to get a executable program
[tingo@kg-htpc setblocksize]$ make all
I tested that the program worked
[tingo@kg-htpc setblocksize]$ ./setblocksize

setblocksize V0.2

Checking parameters ...
Parameter error!
Usage: 'setblocksize [-b<Blocksize in Byte>] [-t<Timeout in Minutes>] <sg_device>'
it worked so far.
== Test if setblocksize works on the drive ==
The drive is already "bricked" so it can't be worse.
[tingo@kg-htpc ~]$ sudo work/setblocksize/setblocksize -b1024 /dev/sg1

setblocksize V0.2

Checking parameters ...
Blocksize specified.
Done.
New blocksize: 1024 Bytes
Format timeout: 120 minutes
Open device file ...
Done.
Prepare command ...
Done.
Send INQUIRY command ...
Done.
Check status ...
Command successful.
Check for LUN ...
LUN present.

===============================================================================
SCSI ID : 0
LUN : 0
Connected to: Host2 / Channel0
Manufacturer: SEAGATE
Model : ST31200N
Device type : Disk
===============================================================================
Do you really want to reformat this device [y/n]? y
Prepare command ...
Done.
Send MODE SELECT command ...
Done.
Check status ...
Command successful.
Prepare command ...
Done.
Send FORMAT UNIT command ...
*** Please wait - Do not manually interrupt or power down! ***
(the LED on the drive lights up, now I have to wait)
Done.
Check status ...
Command successful.
Close device file ...
Done.

Exiting ...
The process took about 20 minutes on this drive.
=== check the result ===
I installed sg3_utils on the Fedora machine to figure out if setblocksize had done its job.
==== sg_format ====
[tingo@kg-htpc ~]$ sudo sg_format /dev/sg1
SEAGATE ST31200N 8008 peripheral_type: disk [0x0]
Mode Sense (block descriptor) data, prior to changes:
Number of blocks=0 [0x0]
Block size=1024 [0x400]
Read Capacity (10) results:
Number of logical blocks=1074591
Logical block size=1024 bytes
No changes made. To format use '--format'. To resize use '--resize'
So sg_format thinks the drive has 1024 byte blocks - good.
==== sg_readcap ====
[tingo@kg-htpc ~]$ sudo sg_readcap /dev/sg1
Read Capacity results:
Last logical block address=1074590 (0x10659e), Number of blocks=1074591
Logical block length=1024 bytes
Hence:
Device size: 1100381184 bytes, 1049.4 MiB, 1.10 GB
sg_readcap also agrees with sg_format.

So it looks like setblocksize really managed to change the drive.

[[Category:Seagate]] [[Category:ST31200N]] [[Category:SCSI]] [[Category:Hard drive]] [[Category:Testing]] [[Category:setblocksize]]