hdparm reports 4096.... (reading http://karelzak.blogspot.com/2010/05/4096-byte-sector-hard-drives.html)
Now I am really going nuts.
root@five-72 ~ # cat /sys/block/sdb/queue/physical_block_size 512
root@five-72 ~ # cat /sys/block/sdb/queue/logical_block_size 512
root@five-72 ~ # cat /sys/block/sdb/queue/optimal_io_size 0
root@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@five-72 ~
root@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@centos.org [mailto:centos-bounces@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@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@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@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@centos.org http://lists.centos.org/mailman/listinfo/centos