=== Zametki zlogo admina » Nemnogo o vintah i kontrollerah
 ===


Uzhe davno u menja na stole lezhit SAS vinchester, kotoryj ja hotel by
postavit' v domashnij komp'juter, no k nemu net kontrollera, a
sovremennye kontrollery dorogovaty. I segodnja u menja voznikla mysl'
sobrat' na rabote raznye vinty i kontrollery, provesti nebol'shoj test
i ocenit' perspektivy apgrejda.

Glavnye geroi segodnjashnego testa:

 * Mat' na chipsete Intel B75  pervoe, chto popalos' pod ruku.
 * HDD SATA WD Black WD7501AALS 750Gb  analogichnyj tomu, chto stoit u
   menja sejchas
 * HDD SAS Toshiba MBF245LRC 450 Gb 10k rpm  kandidat na zamenu
 * HDD SATA WD RE4 WD5003ABYX 500Gb  sluchajno popalis' dva
   odinakovyh, reshil proverit' skorost' v RAID massive
 * Kontroller LSI SAS1064E 3 Gb/s  staryj, dolgo i chestno
   otrabotavshij
 * Kontroller Adaptec 6805E 6 Gb/s  zamena predyduschego, tozhe dolgo i
   chestno otrabotal
Itak, rezul'taty testov:

WD7501AALS, Intel B75
----------------------------------------------------------------------
-
CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
----------------------------------------------------------------------
-
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 106.282 MB/s
Sequential Write : 103.034 MB/s
Random Read 512KB : 47.006 MB/s
Random Write 512KB : 65.168 MB/s
Random Read 4KB (QD=1) : 0.682 MB/s [ 166.4 IOPS]
Random Write 4KB (QD=1) : 1.466 MB/s [ 357.9 IOPS]
Random Read 4KB (QD=32) : 1.829 MB/s [ 446.6 IOPS]
Random Write 4KB (QD=32) : 1.563 MB/s [ 381.7 IOPS]

Test : 1000 MB [C: 2.6% (18.1/698.3 GB)] (x5)
Date : 2014/10/15 10:33:09
OS : Windows 8.1 Pro [6.3 Build 9600] (x64)

WD7501AALS, Adaptec 6805E
Sequential Read : 98.560 MB/s
Sequential Write : 104.994 MB/s
Random Read 512KB : 48.123 MB/s
Random Write 512KB : 62.169 MB/s
Random Read 4KB (QD=1) : 0.666 MB/s [ 162.5 IOPS]
Random Write 4KB (QD=1) : 1.568 MB/s [ 382.8 IOPS]
Random Read 4KB (QD=32) : 1.702 MB/s [ 415.5 IOPS]
Random Write 4KB (QD=32) : 1.559 MB/s [ 380.5 IOPS]

WD7501AALS, LSI SAS1064E
Sequential Read : 103.902 MB/s
Sequential Write : 104.160 MB/s
Random Read 512KB : 47.309 MB/s
Random Write 512KB : 65.264 MB/s
Random Read 4KB (QD=1) : 0.660 MB/s [ 161.2 IOPS]
Random Write 4KB (QD=1) : 1.444 MB/s [ 352.5 IOPS]
Random Read 4KB (QD=32) : 1.313 MB/s [ 320.7 IOPS]
Random Write 4KB (QD=32) : 1.592 MB/s [ 388.7 IOPS]

2xWD5003ABYX RAID1, Adaptec 6805E
Sequential Read : 250.766 MB/s
Sequential Write : 139.568 MB/s
Random Read 512KB : 46.680 MB/s
Random Write 512KB : 87.186 MB/s
Random Read 4KB (QD=1) : 0.705 MB/s [ 172.1 IOPS]
Random Write 4KB (QD=1) : 1.645 MB/s [ 401.7 IOPS]
Random Read 4KB (QD=32) : 2.783 MB/s [ 679.4 IOPS]
Random Write 4KB (QD=32) : 1.648 MB/s [ 402.2 IOPS]

2xWD5003ABYX RAID0, Adaptec 6805E
Sequential Read : 286.222 MB/s
Sequential Write : 277.585 MB/s
Random Read 512KB : 57.758 MB/s
Random Write 512KB : 134.800 MB/s
Random Read 4KB (QD=1) : 0.737 MB/s [ 180.0 IOPS]
Random Write 4KB (QD=1) : 3.221 MB/s [ 786.4 IOPS]
Random Read 4KB (QD=32) : 2.925 MB/s [ 714.2 IOPS]
Random Write 4KB (QD=32) : 3.099 MB/s [ 756.7 IOPS]

Toshiba MBF245LRC, Adaptec 6805E
Sequential Read : 155.737 MB/s
Sequential Write : 159.116 MB/s
Random Read 512KB : 73.989 MB/s
Random Write 512KB : 75.778 MB/s
Random Read 4KB (QD=1) : 0.980 MB/s [ 239.2 IOPS]
Random Write 4KB (QD=1) : 2.907 MB/s [ 709.8 IOPS]
Random Read 4KB (QD=32) : 3.112 MB/s [ 759.8 IOPS]
Random Write 4KB (QD=32) : 3.112 MB/s [ 759.8 IOPS]

Toshiba MBF245LRC, LSI SAS1064E
Sequential Read : 158.996 MB/s
Sequential Write : 157.609 MB/s
Random Read 512KB : 71.131 MB/s
Random Write 512KB : 72.102 MB/s
Random Read 4KB (QD=1) : 1.014 MB/s [ 247.4 IOPS]
Random Write 4KB (QD=1) : 2.954 MB/s [ 721.3 IOPS]
Random Read 4KB (QD=32) : 3.636 MB/s [ 887.7 IOPS]
Random Write 4KB (QD=32) : 3.058 MB/s [ 746.7 IOPS]

Chto iz vsego e'togo sleduet:
1. I dlja SAS, i dlja SATA diskov v dannyh uslovijah proizvoditel'nost'
konfiguracii iz odnogo diska prakticheski ne zavisit ot ispol'zuemogo
kontrollera. A e'to znachit, mozhno ne pereplachivat' i vzjat' staren'kij
trehgigabitnyj kontroller, kotorye ja vstrechal na ebee po 10$.
2. SAS vinchester v poltora raza udelyvaet SATA-shnyj pri
posledovatel'nom chtenii/zapisi i v dva raza pri sluchajnyh operacijah,
chto ves'ma prijatno.
3. Bolee togo, odin SAS disk pokazyvaet na sluchajnyh operacijah takuju
zhe proizvoditel'nost', kak dva SATA diska v RAID0. Pravda, otstaet na
posledovatel'nyh operacijah, no e'to menee aktual'no dlja sistemnogo
diska.

V obschem, poluchaetsja neplohoj variant dlja teh, kto hochet uskorit'
diskovye operacii, no boitsja svjazyvat'sja s SSD. Na rasprodazhah mozhno
najti SAS diski po vpolne vmenjaemym cenam, pri e'tom poluchaja bolee
vysokuju i proverennuju godami nadezhnost', chem SSD bytovogo klassa.
E'nterprajznoe zhelezo  v kazhdyj dom!


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