\nearlgrey:~# hdparm -t \/dev\/sda
\n\/dev\/sda:
\nTiming buffered disk reads: 188 MB in 3.02 seconds = 62.17 MB\/sec
\nearlgrey:~# hdparm -T \/dev\/sda
\n\/dev\/sda:
\nTiming cached reads: 2384 MB in 2.00 seconds = 1191.93 MB\/sec
\n<\/PRE>
\n\u30c7\u30a3\u30b9\u30af2\u500b\u306eRAID1\u3067\u3082\u3053\u306e\u30b9\u30d4\u30fc\u30c9\u306f\u3055\u3059\u304c\u3067\u3059\u3002\u3088\u30fc\u3057\u3001\u30d1\u30d1\u3001\u4f59\u3063\u305f200GB\u00d72\u3092P-ATA\u2192S-ATA\u5909\u63db\u30a2\u30c0\u30d7\u30bf\u565b\u307e\u3057\u305f\u5909\u614bRAID\u306b\u3057\u3061\u3083\u3046\u305e\u30fc!\u2190\u307e\u305f\u58ca\u308c\u307e\u3057\u305f
\n\u3067\u3001\u3084\u3063\u3061\u3083\u3044\u307e\u3057\u305f\u3002RAID5\u3078\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u5bb9\u91cf\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u60aa\u3044\u306e\u304b\u30a8\u30e9\u30fc\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001RAID1\u3067\u4e8c\u500b\u76ee\u3092\u4f5c\u6210\u3057\u3066\u305d\u308c\u3092VG\u306b\u8ffd\u52a0\u3057\u305f\u7d50\u679c\u304c\u30b3\u30ec\u3002
\n
\nearlgrey:~# vgdisplay
\n— Volume group —
\nVG Name datavg
\nSystem ID
\nFormat lvm2
\nMetadata Areas 2
\nMetadata Sequence No 6
\nVG Access read\/write
\nVG Status resizable
\nMAX LV 0
\nCur LV 2
\nOpen LV 2
\nMax PV 0
\nCur PV 2
\nAct PV 2
\nVG Size 445.75 GB
\nPE Size 4.00 MB
\nTotal PE 114111
\nAlloc PE \/ Size 64256 \/ 251.00 GB
\nFree PE \/ Size 49855 \/ 194.75 GB
\n<\/PRE>
\n\u5927\u5bb9\u91cf\u30d5\u30a9\u30fc\uff01\uff01\u3064\u30fc\u304b\u3001\u7a4d\u3093\u3067\u308b\u5bb9\u91cf\u3060\u3051\u306a\u30891TB\u8d85\u3002300GB\u306eHDD\u304c1\u4e07\u3061\u3087\u3063\u3068\u3067\u5e30\u308b\u3053\u3068\u3092\u8003\u3048\u308b\u3068\u666e\u901a\u3060\u3088\u306d\uff1f
\n\u3068\u308a\u3042\u3048\u305a\u524d\u56de\u5984\u60f3\u3057\u3066\u3044\u305f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u30c7\u30a3\u30b9\u30af\u306b\u3064\u3044\u3066\u306f\u3001\u307e\u3060\u3069\u3046\u3059\u308b\u304b\u6c7a\u3081\u304b\u306d\u3066\u308b\u3001\u3063\u3066\u3044\u3046\u304b\u3053\u3093\u306a\u5de8\u5927\u30c7\u30a3\u30b9\u30af\u3092\u3069\u3053\u306b\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u305b\u3047\u3068\u3002\u3002\u3002\u2190\u81ea\u696d\u81ea\u5f97<\/p>\n","protected":false},"excerpt":{"rendered":"earlgrey:~# hdparm -t \/dev\/sda \/dev\/sda: Timing buffered disk reads: 188 MB in 3.02 seconds = 62.17 MB\/sec ear […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2223","post","type-post","status-publish","format-standard","hentry","category-1"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2223"}],"version-history":[{"count":0,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2223\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}