Jason Pyeron
2014-Apr-30 20:47 UTC
[CentOS] 3TB non-system disk reports wrong size on Centos 6 x86_64
root at five-72 ~ # dd if=/dev/zero of=/dev/sdb bs=1M count=1000 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 8.67101 s, 121 MB/s root at five-72 ~ # parted /dev/sdb GNU Parted 2.1 Using /dev/sdb Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel gpt (parted) print Model: ATA ST3000DM001-1CH1 (scsi) --> http://www.seagate.com/staticfiles/docs/pdf/datasheet/disc/barracuda-ds1737-1-11 11us.pdf Disk /dev/sdb: 2199GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags (parted) q Information: You may need to update /etc/fstab. root at five-72 ~ # cat /sys/block/sdb/queue/physical_block_size 512 But the drive says 4k sector size! What am I doing wrong? -Jason -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.
Jason Pyeron
2014-Apr-30 21:22 UTC
[CentOS] 3TB non-system disk reports wrong size on Centos 6 x86_64
hdparm reports 4096.... (reading
http://karelzak.blogspot.com/2010/05/4096-byte-sector-hard-drives.html)
Now I am really going nuts.
root at five-72 ~
# cat /sys/block/sdb/queue/physical_block_size
512
root at five-72 ~
# cat /sys/block/sdb/queue/logical_block_size
512
root at five-72 ~
# cat /sys/block/sdb/queue/optimal_io_size
0
root at five-72 ~
# uname -a
Linux five-72.internal.pdinc.us 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25
19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linuxroot at five-72 ~
root at five-72 ~
# hdparm -I /dev/sdb
/dev/sdb:
ATA device, with non-removable media
Model Number: ST3000DM001-1CH166
Serial Number: W1F2TPQT
Firmware Revision: CC26
Transport: Serial, SATA Rev 3.0
Standards:
Used: unknown (minor revision code 0x0029)
Supported: 8 7 6 5
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 5860533168
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 2861588 MBytes
device size with M = 1000*1000: 3000592 MBytes (3000 GB)
cache/buffer size = unknown
Form Factor: 3.5 inch
Nominal Media Rotation Rate: 7200
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = ?
Advanced power management level: 128
Recommended acoustic management value: 208, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
SET_MAX security extension
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
Write-Read-Verify feature set
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Gen3 signaling speed (6.0Gb/s)
* Native Command Queueing (NCQ)
* Phy event counters
* unknown 76[15]
DMA Setup Auto-Activate optimization
Device-initiated interface power management
* Software settings preservation
* SMART Command Transport (SCT) feature set
* SCT Write Same (AC2)
unknown 206[7]
unknown 206[12] (vendor specific)
unknown 206[13] (vendor specific)
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
supported: enhanced erase
318min for SECURITY ERASE UNIT. 318min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c50061172c81
NAA : 5
IEEE OUI : 000c50
Unique ID : 061172c81
Checksum: correct
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
- -
- Jason Pyeron PD Inc. http://www.pdinc.us -
- Principal Consultant 10 West 24th Street #100 -
- +1 (443) 269-1555 x333 Baltimore, Maryland 21218 -
- -
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
This message is copyright PD Inc, subject to license 20080407P00.
> -----Original Message-----
> From: centos-bounces at centos.org
> [mailto:centos-bounces at centos.org] On Behalf Of Jason Pyeron
> Sent: Wednesday, April 30, 2014 16:47
> To: 'CentOS mailing list'
> Subject: [CentOS] 3TB non-system disk reports wrong size on
> Centos 6 x86_64
>
> root at five-72 ~
> # dd if=/dev/zero of=/dev/sdb bs=1M count=1000
> 1000+0 records in
> 1000+0 records out
> 1048576000 bytes (1.0 GB) copied, 8.67101 s, 121 MB/s
>
> root at five-72 ~
> # parted /dev/sdb
> GNU Parted 2.1
> Using /dev/sdb
> Welcome to GNU Parted! Type 'help' to view a list of commands.
> (parted) mklabel gpt
> (parted) print
> Model: ATA ST3000DM001-1CH1 (scsi) -->
> http://www.seagate.com/staticfiles/docs/pdf/datasheet/disc/bar
> racuda-ds1737-1-11
> 11us.pdf
> Disk /dev/sdb: 2199GB
> Sector size (logical/physical): 512B/512B
> Partition Table: gpt
>
> Number Start End Size File system Name Flags
>
> (parted) q
> Information: You may need to update /etc/fstab.
>
>
> root at five-72 ~
> # cat /sys/block/sdb/queue/physical_block_size
> 512
>
>
> But the drive says 4k sector size!
>
> What am I doing wrong?
>
> -Jason
>
> --
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> - -
> - Jason Pyeron PD Inc. http://www.pdinc.us -
> - Principal Consultant 10 West 24th Street #100 -
> - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 -
> - -
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> This message is copyright PD Inc, subject to license 20080407P00.
>
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
>
Seemingly Similar Threads
- Setting CDROM parms
- Am I getting the best performance?
- Re: [RFC] lib: allow to specify physical/logical block size for disks
- Re: [RFC] lib: allow to specify physical/logical block size for disks
- Re: [RFC] lib: allow to specify physical/logical block size for disks