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
| Line 13: | Line 13: | ||
* [[Wireless HDD]] (at least since 2014<ref>https://www.storagereview.com/review/wd-my-passport-wireless-review</ref>) | * [[Wireless HDD]] (at least since 2014<ref>https://www.storagereview.com/review/wd-my-passport-wireless-review</ref>) | ||
* [[SSD]] | * [[SSD]] | ||
| + | * [[heads]] | ||
== Activities == | == Activities == | ||
Revision as of 04:45, 24 March 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
Related terms
- wikipedia:S.M.A.R.T.
- HAMR (Heat Assisted Magnetic Recording)
udisksctl- Wireless HDD (at least since 2014[3])
- SSD
- heads
Activities
- 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
- 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, partition, GUID Partition Table (GPT),
fdisk,parted,Kpartx, partition,/proc/partitions,blockdev, mkfs, partprobe,diskpart (Windows),fdisk -l /dev/nbd0 cp,dd,sftp,scp,rsync,casync,mv,fio,ln,docker cp, kubectl cp,minikube cp,multipass transfer,Copy-Item,Xcopy- 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
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