I was given a X86 system running Ubuntu that had some local disks, some of which were HDDs while the other were SSDs. My plan is to use the SSD's for the account and container data of the Swift deployment.
To find out which are HDD and which are SSD do the following.
The 1 indicates a HDD and 0 indicates SSD
Now that I know which are SSDs and which are HDDs. Here is how I got detailed information on the HDD and SSD
For the SSD
| kinetic@paco1:~$ uname -a Linux paco1 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
To find out which are HDD and which are SSD do the following.
| kinetic@paco1:~$ cat /sys/block/sda/queue/rotational 1 kinetic@paco1:~$ cat /sys/block/sdb/queue/rotational 0 kinetic@paco1:~$ cat /sys/block/sdc/queue/rotational 0 kinetic@paco1:~$ cat /sys/block/sdd/queue/rotational 0 |
The 1 indicates a HDD and 0 indicates SSD
Now that I know which are SSDs and which are HDDs. Here is how I got detailed information on the HDD and SSD
| kinetic@paco1:~$ sudo hdparm -I /dev/sda /dev/sda: ATA device, with non-removable media Model Number: ST1000NM0033-9ZM173 Serial Number: Z1W10W30 Firmware Revision: SN03 Transport: Serial, SATA Rev 3.0 Standards: Supported: 9 8 7 6 5 Likely used: 9 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: 1953525168 Logical Sector size: 512 bytes Physical Sector size: 512 bytes Logical Sector-0 offset: 0 bytes device size with M = 1024*1024: 953869 MBytes device size with M = 1000*1000: 1000204 MBytes (1000 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 = ? Recommended acoustic management value: 254, 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 SET_MAX security extension * 48-bit Address 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 * IDLE_IMMEDIATE with UNLOAD Write-Read-Verify feature set * WRITE_UNCORRECTABLE_EXT command * {READ,WRITE}_DMA_EXT_GPL commands * Segmented DOWNLOAD_MICROCODE unknown 119[6] * unknown 119[7] * 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 * Idle-Unload when NCQ is active * READ_LOG_DMA_EXT equivalent to READ_LOG_EXT DMA Setup Auto-Activate optimization Device-initiated interface power management * Software settings preservation unknown 78[7] * SMART Command Transport (SCT) feature set * SCT Write Same (AC2) * SCT Error Recovery Control (AC3) * SCT Features Control (AC4) * SCT Data Tables (AC5) unknown 206[7] unknown 206[12] (vendor specific) unknown 206[14] (vendor specific) Security: Master password revision code = 65534 supported not enabled not locked not frozen not expired: security count supported: enhanced erase 116min for SECURITY ERASE UNIT. 116min for ENHANCED SECURITY ERASE UNIT. Logical Unit WWN Device Identifier: 5000c500656fbf99 NAA : 5 IEEE OUI : 000c50 Unique ID : 0656fbf99 Checksum: correct |
For the SSD
| kinetic@paco1:/dev$ sudo hdparm -I /dev/sdb /dev/sdb: ATA device, with non-removable media Model Number: ST240HM000-1G5152 Serial Number: Z4N005W0 Firmware Revision: C675 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 0 heads 16 0 sectors/track 63 0 -- LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 468862128 Logical Sector size: 512 bytes Physical Sector size: 4096 bytes Logical Sector-0 offset: 0 bytes device size with M = 1024*1024: 228936 MBytes device size with M = 1000*1000: 240057 MBytes (240 GB) cache/buffer size = unknown Form Factor: 2.5 inch Nominal Media Rotation Rate: Solid State Device 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 = 16 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 * NOP cmd * DOWNLOAD_MICROCODE * 48-bit Address 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_UNCORRECTABLE_EXT command * 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) * Host-initiated interface power management * Phy event counters * READ_LOG_DMA_EXT equivalent to READ_LOG_EXT Non-Zero buffer offsets in DMA Setup FIS DMA Setup Auto-Activate optimization In-order data delivery * Software settings preservation * DOWNLOAD MICROCODE DMA command * Data Set Management TRIM supported (limit 1 block) Security: Master password revision code = 65534 supported not enabled not locked not frozen not expired: security count not supported: enhanced erase 8min for SECURITY ERASE UNIT. Logical Unit WWN Device Identifier: 5000c5002ff09784 NAA : 5 IEEE OUI : 000c50 Unique ID : 02ff09784 Checksum: correct |
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