Difference between revisions of "Hard disk drive"
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↑ https://www.seagate.com/docs/pdf/marketing/po_cheetah_15k_5.pdf
↑ https://www.seagate.com/files/docs/pdf/datasheet/disc/cheetah-15k.7-ds1677.3-1007us.pdf
↑ https://www.storagereview.com/review/wd-my-passport-wireless-review
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A [[wikipedia:hard disk drive|hard disk drive]] (HDD), hard disk, hard drive, or fixed disk[b] is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. | A [[wikipedia:hard disk drive|hard disk drive]] (HDD), hard disk, hard drive, or fixed disk[b] is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. | ||
| − | * 15.000 RPM, sustained transfer rates of Transfer Rate Up between 125 Mbytes/sec <ref>https://www.seagate.com/docs/pdf/marketing/po_cheetah_15k_5.pdf</ref> and 204 Mbytes/sec <ref>https://www.seagate.com/files/docs/pdf/datasheet/disc/cheetah-15k.7-ds1677.3-1007us.pdf</ref> depending on product generation | + | * 15.000 RPM, sustained transfer rates of Transfer Rate Up between 125 Mbytes/sec <ref>https://www.seagate.com/docs/pdf/marketing/po_cheetah_15k_5.pdf</ref> and 204 Mbytes/sec )(2010)<ref>https://www.seagate.com/files/docs/pdf/datasheet/disc/cheetah-15k.7-ds1677.3-1007us.pdf</ref> depending on product generation |
* 10.000 RPM | * 10.000 RPM | ||
* 7.200 RPM | * 7.200 RPM | ||
| + | |||
| + | * 480MBytes/s (2018) https://www.tomshardware.com/news/seagate-exos-hdd-hamr-mach.2,36719.html | ||
| + | |||
| + | * Size: [[22TB]] | ||
== Related terms == | == Related terms == | ||
* [[wikipedia:S.M.A.R.T.]] | * [[wikipedia:S.M.A.R.T.]] | ||
| + | * [[HAMR (Heat Assisted Magnetic Recording)]] | ||
| + | * <code>[[udisksctl]]</code> | ||
| + | * [[Wireless HDD]] (at least since 2014<ref>https://www.storagereview.com/review/wd-my-passport-wireless-review</ref>) | ||
| + | * [[SSD]] | ||
| + | * [[heads]] | ||
== Activities == | == Activities == | ||
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# Use <code>[[lsblk]]</code> and <code>[[blkid]]</code> commands in [[Linux]] to identify your HDD devices | # Use <code>[[lsblk]]</code> and <code>[[blkid]]</code> commands in [[Linux]] to identify your HDD devices | ||
# Use [[iotop]], [[iostat]] and [[sar -d]] in [[Linux]] to assess you disk usage | # Use [[iotop]], [[iostat]] and [[sar -d]] in [[Linux]] to assess you disk usage | ||
| + | # Read [[wikipedia:Hard_disk_drive_performance_characteristics]] | ||
== See also == | == See also == | ||
* {{Linux block devices}} | * {{Linux block devices}} | ||
* {{io performance commands}} | * {{io performance commands}} | ||
| − | |||
| − | |||
* {{Block device hardware}} | * {{Block device hardware}} | ||
* {{Storage}} | * {{Storage}} | ||
| − | + | * {{HDD}} | |
[[Category:Hardware]] | [[Category:Hardware]] | ||
[[Category:Storage]] | [[Category:Storage]] | ||
Latest revision as of 18:05, 22 December 2023
A hard disk drive (HDD), hard disk, hard drive, or fixed disk[b] is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
- 15.000 RPM, sustained transfer rates of Transfer Rate Up between 125 Mbytes/sec [1] and 204 Mbytes/sec )(2010)[2] depending on product generation
- 10.000 RPM
- 7.200 RPM
- 480MBytes/s (2018) https://www.tomshardware.com/news/seagate-exos-hdd-hamr-mach.2,36719.html
- Size: 22TB
Related terms[edit]
- wikipedia:S.M.A.R.T.
- HAMR (Heat Assisted Magnetic Recording)
udisksctl- Wireless HDD (at least since 2014[3])
- SSD
- heads
Activities[edit]
- Learn about SSD storage technology and compare it with HDD technology
- Use
lsblkandblkidcommands in Linux to identify your HDD devices - Use iotop, iostat and sar -d in Linux to assess you disk usage
- Read wikipedia:Hard_disk_drive_performance_characteristics
See also[edit]
- Block devices:
blkid(UUID),lshw -class disk,hwinfo --disk,udevadm,rescan-scsi-bus.sh,LUN,hdparm,findfs, Add a new disk lsblk,pvscanlspci,lsscsi,smartctl,fdisk,parted,Kpartx,pvdiplay,pvs,udisksctl,/dev/sd, nvme list- IO performance:
iotop, iostat, sar -d, fio, nmon, vmstat -d,dd,nmon,stress - Block devices: HDD, SSD, Intel Optane, block size
- Storage: Fibre Channel, Disk arrays, Disk array shelves, Disk array controller, CD-ROM, DVD, Tape library, LTO, HDD, SSD, SCSI, iSCSI, SAS, SATA, SEDs, OPAL, Magnetic storage, WORM
- HDD, S.M.A.R.T., hdparm,
udisksctl, CHS, ata,smartctl, WD Elements Desktop Hard Drive
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