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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. | ||
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== Activities == | == Activities == | ||
− | # Learn about [[ | + | # Learn about [[SDD]] storage technology and compare it with [[HDD]] technology |
# 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 | ||
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== See also == | == See also == | ||
− | * | + | * [[lsblk]] and [[blkid]], <code>[[hwinfo]] --disk</code>, <code>[[lshw]] -class disk</code>, <code>[[lspci]]</code> and [[hdparm]] |
* {{io performance commands}} | * {{io performance commands}} | ||
+ | * [[CPU]], [[memory]] | ||
+ | * <code>[[cp]]</code>, <code>[[rsync]]</code> and <code>[[dd]]</code> linux commands | ||
* {{Block device hardware}} | * {{Block device hardware}} | ||
* {{Storage}} | * {{Storage}} | ||
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[[Category:Hardware]] | [[Category:Hardware]] | ||
[[Category:Storage]] | [[Category:Storage]] |
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