Anwendung
Alle Informationen anzeigen
# hdparm -I /dev/sdb
/dev/sdb:
ATA device, with non-removable media
Model Number: Hitachi HDS722020ALA330
Serial Number: JK1160YAGMUVRT
Firmware Revision: JKAOA3MA
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6; Revision: ATA8-AST T13 Project D1697 Revision 0b
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: 3907029168
Logical/Physical Sector size: 512 bytes
device size with M = 1024*1024: 1907729 MBytes
device size with M = 1000*1000: 2000398 MBytes (2000 GB)
cache/buffer size = 29999 KBytes (type=DualPortCache)
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 = 0
Advanced power management level: disabled
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
Power-Up In Standby feature set
* SET_FEATURES required to spinup after power up
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
Media Card Pass-Through
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
* URG for READ_STREAM[_DMA]_EXT
* URG for WRITE_STREAM[_DMA]_EXT
* WRITE_UNCORRECTABLE_EXT command
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* NCQ priority information
Non-Zero buffer offsets in DMA Setup FIS
* DMA Setup Auto-Activate optimization
Device-initiated interface power management
In-order data delivery
* Software settings preservation
* SMART Command Transport (SCT) feature set
* SCT Write Same (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
500min for SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000cca221c90422
NAA : 5
IEEE OUI : 000cca
Unique ID : 221c90422
Checksum: correct
Bestimmte Information anzeigen
# hdparm -I /dev/sdb | grep "cache"
cache/buffer size = 29999 KBytes (type=DualPortCache)
Write cache
- Datenträger sdb hat eine "cache size" von 29,999 MB.
Advanced Power Management einstellen
# hdparm -B 254 /dev/sda
/dev/sda:
setting Advanced Power Management level to 0xfe (254)
APM_level = 254
- Datenträger sda ist auf höchst mögliche Leistung eingestellt => beste Performance, aber höchster Stromverbrauch.
Standby-Modus (Spindown)
- Hier auf ein Standby-Zeitlimit von 2min.
# hdparm -S 24 /dev/sda
/dev/sda:
setting standby to 24 (2 minutes)
hdparm-Einstellungen nach einem Software-Reset beibehalten
- Hier Aktivierung bei Datenträger sda.
# hdparm -K 1 /dev/sda
/dev/sda:
setting drive keep features to 1 (on)
Read-Lookahead-Funktion
- Hier Aktivierung beim Datenträger sda.
# hdparm -A 1 /dev/sda
/dev/sda:
setting drive read-lookahead to 1 (on)
look-ahead = 1 (on)
Akkustik
Akkustiklevel anzeigen
# hdparm -M /dev/sda
/dev/sda:
acoustic = 254 (128=quiet ... 254=fast)
- Akkustiklevel des Datenträgers sda ist auf "fast" eingestellt => schnell, aber laut.
Akkustiklevel einstellen
- Hier auf "quiet" => geringere Performance.
# hdparm -M 128 /dev/sda
/dev/sda:
setting acoustic management to 128
acoustic = 128 (128=quiet ... 254=fast)
Lesegeschwindigkeit messen
Mit Cache
# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 6962 MB in 2.00 seconds = 3482.67 MB/sec
Timing buffered disk reads: 358 MB in 3.01 seconds = 119.12 MB/sec
Ohne Cache
# hdparm -Tt --direct /dev/sda
/dev/sda:
Timing O_DIRECT cached reads: 498 MB in 2.00 seconds = 248.49 MB/sec
Timing O_DIRECT disk reads: 360 MB in 3.01 seconds = 119.60 MB/sec
Problembehebung