Florian Weimer <
f...@deneb.enyo.de> wrote:
> Wie findet man eigentlich eine USB-SSD, die auch längerfristig mehrere
> hunder IOPS unterstützt (also nicht bloß im Neuzustand)? Auf die
> Schnelle konnte ich keinen Hersteller finden, der IOPS-Zahlen nennt.
Keine Ahnung. Mein Motto: Schlimmer als die SD-Karte kann es nicht
sein, die hab ich nämlich immer innerhalb von Monaten gekillt.
Auf dem Rechner auf dem dieses Posting rausgeht habe ich folgende
angehängt, seit IIRC 2-3 Jahren.
Gibts irgendeinen einfachen Benchmark für IOPS?
Bus 002 Device 004: ID 1058:25f3 Western Digital Technologies, Inc.
[ 2.659423] usb 2-1: new SuperSpeed Gen 1 USB device number 4 using xhci_hcd
[ 2.680264] usb 2-1: New USB device found, idVendor=1058, idProduct=25f3, bcd
Device=10.12
[ 2.680296] usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[ 2.680322] usb 2-1: Product: My Passport 25F3
[ 2.680344] usb 2-1: Manufacturer: Western Digital
[ 2.680366] usb 2-1: SerialNumber: 313931363746343530xxxxx
[ 2.691904] scsi host0: uas
[ 2.693288] scsi 0:0:0:0: Direct-Access WD My Passport 25F3 1012 PQ: 0 ANSI: 6
[ 2.695417] sd 0:0:0:0: [sda] 1000148992 512-byte logical blocks: (512 GB/477 GiB)
[ 2.695452] sd 0:0:0:0: [sda] 4096-byte physical blocks
[ 2.695635] sd 0:0:0:0: [sda] Write Protect is off
[ 2.695670] sd 0:0:0:0: [sda] Mode Sense: 67 00 10 08
[ 2.695960] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 2.696627] sd 0:0:0:0: [sda] Optimal transfer size 1048576 bytes
[ 2.697912] scsi 0:0:0:1: Enclosure WD SES Device 1012 PQ: 0 ANSI: 6
root@pi:~# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: MILAN II 512G
Serial Number: 19167F450709
Firmware Revision: X6105100
Media Serial Num:
Media Manufacturer:
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
Used: unknown (minor revision code 0x005e)
Supported: 11 10 9 8 7 6 5
Likely used: 11
Configuration:
Logical max current
cylinders 16383 0
heads 16 0
sectors/track 63 0
--
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 1000215216
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 488386 MBytes
device size with M = 1000*1000: 512110 MBytes (512 GB)
cache/buffer size = unknown
Form Factor: unknown (0x0007]
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 = 1 Current = 1
Advanced power management level: 254
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
* Power Management feature set
* Write cache
* Look-ahead
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
* 48-bit Address feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* 64-bit World wide name
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
unknown 119[8]
* 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
* READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
DMA Setup Auto-Activate optimization
Device-initiated interface power management
Asynchronous notification (eg. media change)
Software settings preservation
* Device Sleep (DEVSLP)
* reserved 69[4]
* DOWNLOAD MICROCODE DMA command
* WRITE BUFFER DMA command
* READ BUFFER DMA command
* Data Set Management TRIM supported (limit 8 blocks)
* Deterministic read ZEROs after TRIM
Logical Unit WWN Device Identifier: 5001b444a877df25
NAA : 5
IEEE OUI : 001b44
Unique ID : 4a877df25
Device Sleep:
DEVSLP Exit Timeout (DETO): 30 ms (drive)
Minimum DEVSLP Assertion Time (MDAT): 30 ms (drive)
Checksum: correct
root@pi:~# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: MILAN II 512G
Serial Number: 19167F450709
Firmware Revision: X6105100
Media Serial Num:
Media Manufacturer:
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
Used: unknown (minor revision code 0x005e)
Supported: 11 10 9 8 7 6 5
Likely used: 11
Configuration:
Logical max current
cylinders 16383 0
heads 16 0
sectors/track 63 0
--
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 1000215216
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 488386 MBytes
device size with M = 1000*1000: 512110 MBytes (512 GB)
cache/buffer size = unknown
Form Factor: unknown (0x0007]
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 = 1 Current = 1
Advanced power management level: 254
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
* Power Management feature set
* Write cache
* Look-ahead
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
* 48-bit Address feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* 64-bit World wide name
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
unknown 119[8]
* 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
* READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
DMA Setup Auto-Activate optimization
Device-initiated interface power management
Asynchronous notification (eg. media change)
Software settings preservation
* Device Sleep (DEVSLP)
* reserved 69[4]
* DOWNLOAD MICROCODE DMA command
* WRITE BUFFER DMA command
* READ BUFFER DMA command
* Data Set Management TRIM supported (limit 8 blocks)
* Deterministic read ZEROs after TRIM
Logical Unit WWN Device Identifier: 5001b444a877df25
NAA : 5
IEEE OUI : 001b44
Unique ID : 4a877df25
Device Sleep:
DEVSLP Exit Timeout (DETO): 30 ms (drive)
Minimum DEVSLP Assertion Time (MDAT): 30 ms (drive)
Checksum: correct