{"id":796,"date":"2010-09-01T00:25:00","date_gmt":"2010-08-31T22:25:00","guid":{"rendered":"https:\/\/sweetweb.blog\/?p=796"},"modified":"2023-08-07T23:58:36","modified_gmt":"2023-08-07T21:58:36","slug":"how-to-swap-raid0-avec-des-cartes-lsi-ovh-serveur-hybrid","status":"publish","type":"post","link":"https:\/\/sweetweb.blog\/index.php\/2010\/09\/01\/how-to-swap-raid0-avec-des-cartes-lsi-ovh-serveur-hybrid\/","title":{"rendered":"How to : Swap Raid0 avec des cartes LSI \u2013 OVH Serveur Hybrid"},"content":{"rendered":"\n
J\u2019ai plein de notes sur mon google docs, et je me suis dit pourquoi pas partager mon exp\u00e9rience avec vous.<\/p>\n\n\n\n
Je me suis inspir\u00e9 du tuto de @Toorop_ (blog.toorop.fr<\/a>) visible \u00e0 cette adresse : Je suis en plein test de Xen, je le teste sur les derniers EG Hybrid d\u2019OVH avec une carte Raid LSI, 2 HDD 750Go et 2 SSD 80Go.<\/p>\n\n\n\n 80Go \u00e9tant trop petit \u00e0 mon go\u00fbt, je me sers de mes 2 SSD de swap ! En raid0 donc \u00e7a fait environ 150Go de swap! ! Attention, ce tutoriel n\u2019a rien avoir avec Xen, si vous voulez que la swap des VMs soit sur les SSD en raid0 il faudra cr\u00e9er une partition lvm vide et non une partition swap !<\/strong><\/p>\n\n\n\n Un petit peu de teasing !<\/p>\n\n\n\n Pas mal, non ? Depuis quelques mois OVH a renouvel\u00e9 ses cartes raid, c\u2019est pas plus mal, car j\u2019en ai une sur un vieux EG et avec, tu d\u00e9passes pas les 50 Mo\/s<\/p>\n\n\n\n On passe donc d\u2019une vieille carte 3ware \u00e0 une LSI (LSI Logic SAS1064E B3) flambant \u00ab neuf \u00bb, l\u2019option raid hard est payante par contre alors qu\u2019avant non, mais au moins on peut enfin profiter de la puissance des SSD avec du raid hard sur des machines OVH.<\/p>\n\n\n\n J\u2019ai rien contre le raid soft, je l\u2019utilise sur la plupart de mes machines et j\u2019en suis tr\u00e8s satisfait, mais je voulais tester cette nouvelle carte. On s\u00e9lectionne notre carte raid : 1 Vous devriez avoir ceci<\/p>\n\n\n\n 2 volumes et 4 disques, par d\u00e9faut les deux volumes sont en raid1 (Mirroring), ceux qui nous int\u00e9ressent sont les deux SSD de 75340 Mo. Nous allons recr\u00e9er le volume mais cette fois-ci en raid0, tapez 30 Ensuite on a le choix entre un raid1 (Mirroring) ou du Raid0 (Striping), donc tapez 1, si vous voulez utiliser la totalit\u00e9 des SSD laissez la valeur par d\u00e9faut (151,5 Go), j\u2019ai laiss\u00e9 tout par d\u00e9faut.<\/p>\n\n\n\n Pour v\u00e9rifiez, un petit show volume, 1<\/p>\n\n\n\n On a bien les HDD en Raid1 et les SSD en Raid0, vous pouvez quitter l\u2019utilitaire avec 0.<\/p>\n\n\n\n Nous allons pouvoir cr\u00e9er notre partition pour la swap. Vous devriez avoir ceci:<\/p>\n\n\n\n Ici notre volume est mont\u00e9 sous \/dev\/sdb<\/p>\n\n\n\n Tapez m, pour voir la liste des commandes :<\/p>\n\n\n\n Tapez l pour afficher les diff\u00e9rents types de partitions :<\/p>\n\n\n\n Celle qui nous int\u00e9resse c\u2019est n (add a new partition) et 83 (Linux swap \/ Solaris)<\/p>\n\n\n\n Ensuite pour valider et quitter tapez w (write table to disk and exit)<\/p>\n\n\n\n Cependant si on fait un petit fdisk -l on s\u2019aper\u00e7oit que notre partition n\u2019est pas pour la swap. On refait fdisk \/dev\/sdb, tapez t 83 pour changer le type de partition, et tapez 82 puis w.<\/p>\n\n\n\n Maintenant il va falloir dire \u00e0 notre syst\u00e8me d\u2019utiliser \/dev\/sdb1 et non \/dev\/sda2 comme swap<\/p>\n\n\n\n Cela peut prendre une bonne dizaine de minutes avec une partition de 150Go !<\/p>\n\n\n\n On d\u00e9sactive l\u2019ancienne swap<\/p>\n\n\n\n Et on active la nouvelle<\/p>\n\n\n\n Ne pas oublier d\u2019\u00e9diter \/etc\/fstab pour que cette nouvelle partition soit mont\u00e9e, car sinon au prochain reboot vous allez avoir des surprises.<\/p>\n\n\n\n Cel\u00e0 devrait ressembler \u00e0 ceci apr\u00e8s modificaiton :<\/p>\n\n\n\n Ensuite pour monter le nouveau volume et retirer l\u2019ancien<\/p>\n\n\n\n Et voil\u00e0 la b\u00eate :<\/p>\n\n\n\n Un petit reboot pour \u00eatre sur que tout va bien. (pas obligatoire, mais au moins au prochain reboot si il y a une merde, on sera que \u00e7a ne viendra pas de notre swap)<\/p>\n\n\n\n Pour les curieux vous pouvez faire un test d\u2019\u00e9criture sur le volume en Raid0 avec hdparm<\/p>\n\n\n\n Et pour comparer avec les HDD<\/p>\n\n\n\n J\u2019attend avec impatience les futurs SSD 600Go d\u2019intel, comme \u00e7a un petit raid10 avec 6 SSD 600Go et 2 SSD 32Go en raid0 pour la swap et l\u00e0 mes VMs seront des petites fus\u00e9es.<\/p>\n\n\n\n Bon c\u2019est pas pour tout de suite, fin d\u2019ann\u00e9e 2010 d\u2019apr\u00e8s Octave (et mon porte feuille n\u2019est pas encore pr\u00eat).<\/p>\n","protected":false},"excerpt":{"rendered":" J\u2019ai plein de notes sur mon google docs, et je me suis dit pourquoi pas…<\/p>\n","protected":false},"author":1,"featured_media":882,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80,67,81],"tags":[83,82,84],"featured_image_urls":{"full":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",890,420,false],"thumbnail":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed-720x300.png",720,300,true],"medium":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed-800x378.png",800,378,true],"medium_large":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed-768x362.png",640,302,true],"large":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",640,302,false],"1536x1536":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",890,420,false],"2048x2048":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",890,420,false],"newsphere-slider-full":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",890,420,false],"newsphere-featured":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png",890,420,false],"newsphere-medium":["https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed-720x380.png",720,380,true]},"author_info":{"display_name":"maxence","author_link":"https:\/\/sweetweb.blog\/index.php\/author\/maxence\/"},"category_info":"HowTo<\/a> OVH<\/a> RAID<\/a>","tag_info":"RAID","comment_count":"0","jetpack_featured_media_url":"https:\/\/sweetweb.blog\/wp-content\/uploads\/2010\/09\/SSDRaid0-transformed.png","jetpack-related-posts":[{"id":736,"url":"https:\/\/sweetweb.blog\/index.php\/2009\/12\/15\/mon-nouveau-bebe\/","url_meta":{"origin":796,"position":0},"title":"Mon nouveau b\u00e9b\u00e9","author":"maxence","date":"December 15, 2009","format":false,"excerpt":"J\u2019ai craqu\u00e9 ! Quand j\u2019avais vu les nouvelles offres d\u2019OVH\u00a0en septembre, le\u00a0EG SSD\u00a0(entr\u00e9e de gamme) m\u2019avait fait des yeux doux. Les nouvelles offres sont vraiment sympa niveau hardware, mais cot\u00e9 service, on perd beaucoup. Par exemple, le serveur que j\u2019utilise aujourd\u2019hui est le EG 08 Reloaded avec Intel Xeon 3075\u2026","rel":"","context":"In "OVH"","block_context":{"text":"OVH","link":"https:\/\/sweetweb.blog\/index.php\/category\/companies\/ovh\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/12\/Screenshot-2023-08-06-at-23.28.46.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/12\/Screenshot-2023-08-06-at-23.28.46.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/12\/Screenshot-2023-08-06-at-23.28.46.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":661,"url":"https:\/\/sweetweb.blog\/index.php\/2009\/05\/20\/serveur-linux-chez-soi-eeebox-debian\/","url_meta":{"origin":796,"position":1},"title":"Serveur Linux chez soi \u2013 EEEBOX & DEBIAN","author":"maxence","date":"May 20, 2009","format":false,"excerpt":"Quoi de mieux pour\u00a0stocker ses informations chez soit sur une machine d\u00e9di\u00e9\u00a0\u00e0 \u00e7a, qui serait\u00a0connect\u00e9 24h\/24\u00a0et\u00a0reli\u00e9 \u00e0 internet\u00a0et donc acc\u00e8ssible partout dans le monde. Le probl\u00eame qui se pose souvent, c\u2019est la place qui peut manquer, ou encore la consomation \u00e9lectrique voir aussi la nuissance sonore du au DD, et\u2026","rel":"","context":"In "EEEBox"","block_context":{"text":"EEEBox","link":"https:\/\/sweetweb.blog\/index.php\/category\/tech\/eeebox\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/8-asus-eee-box-transformed.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/8-asus-eee-box-transformed.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/8-asus-eee-box-transformed.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/8-asus-eee-box-transformed.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":642,"url":"https:\/\/sweetweb.blog\/index.php\/2009\/05\/16\/monitorer-sa-livebox-avec-munin\/","url_meta":{"origin":796,"position":2},"title":"Monitorer sa Livebox avec Munin","author":"maxence","date":"May 16, 2009","format":false,"excerpt":"R\u00e9cup\u00e9rer quelques informations de votre\u00a0livebox, comme sa consomation en ram, son traffic pour\u00a0g\u00e9n\u00e9rer des graphiques sous munin.Sa faisait depuis un moment que je voulais connaitre mon traffic mensuel du reseau de mon chez moi, chose faite ! Ce tutoriel est consacr\u00e9 \u00e0 la livebox Sagem F@ST3202 Livebox1. Un peu d\u2019histoire\u2026","rel":"","context":"In "Livebox"","block_context":{"text":"Livebox","link":"https:\/\/sweetweb.blog\/index.php\/category\/livebox\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/livebox-transformed.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/livebox-transformed.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/livebox-transformed.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/livebox-transformed.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2009\/05\/livebox-transformed.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":804,"url":"https:\/\/sweetweb.blog\/index.php\/2010\/06\/06\/mon-ipad\/","url_meta":{"origin":796,"position":3},"title":"Mon iPad","author":"maxence","date":"June 6, 2010","format":false,"excerpt":"Beaucoup se demande pourquoi ai-je achet\u00e9 un iPad ? Un gros iPod Touch ? Chez moi je n\u2019ai plus de machine fixe, juste un MacBook Pro 15\u2033 qui carbure avec un SSD 256Go de OCZ. Je fais quoi dessus ? Tout ? Avec mon MacBook qui est reli\u00e9 \u00e0 un\u2026","rel":"","context":"In "Apple"","block_context":{"text":"Apple","link":"https:\/\/sweetweb.blog\/index.php\/category\/companies\/apple\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/06\/1-iQrpePFN1-transformed-3.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/06\/1-iQrpePFN1-transformed-3.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/06\/1-iQrpePFN1-transformed-3.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/06\/1-iQrpePFN1-transformed-3.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/06\/1-iQrpePFN1-transformed-3.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":715,"url":"https:\/\/sweetweb.blog\/index.php\/2009\/12\/06\/coming-back-nouveau-projet\/","url_meta":{"origin":796,"position":4},"title":"Coming back & Nouveau projet","author":"maxence","date":"December 6, 2009","format":false,"excerpt":"Ca fait un bail ! Depuis mes derni\u00e8res vacances, silence radio sur le blog. D\u00e9sol\u00e9 pour ceux qui me suivent. Malgr\u00e9 ce silence je n\u2019ai pas d\u00e9croch\u00e9 l\u2019actualit\u00e9 du web, loin de l\u00e0. Pourquoi n\u2019ai je pas post\u00e9 sur le blog ? Bah tout simplement parceque je suis sur un\u2026","rel":"","context":"In "My life"","block_context":{"text":"My life","link":"https:\/\/sweetweb.blog\/index.php\/category\/my-life\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":799,"url":"https:\/\/sweetweb.blog\/index.php\/2010\/04\/03\/les-applications-mac-que-jutilise-tous-les-jours\/","url_meta":{"origin":796,"position":5},"title":"Les applications Mac que j\u2019utilise tous les jours","author":"maxence","date":"April 3, 2010","format":false,"excerpt":"Vous venez de faire le grand saut ? Switcher de Windows \u00e0 mac OS ou de Linux \u00e0 mac OS peut \u00eatre tr\u00e8s d\u00e9routant (moins pour ceux venant de linux peut \u00eatre) ! Comme beaucoup de switcher, les premi\u00e8res heures se transforment en une recherche minutieuse d\u2019applications plus ou moins\u2026","rel":"","context":"In "My life"","block_context":{"text":"My life","link":"https:\/\/sweetweb.blog\/index.php\/category\/my-life\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/sweetweb.blog\/wp-content\/uploads\/2010\/04\/Bureau1-300x225-transformed.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/posts\/796"}],"collection":[{"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/comments?post=796"}],"version-history":[{"count":1,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/posts\/796\/revisions"}],"predecessor-version":[{"id":798,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/posts\/796\/revisions\/798"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/media\/882"}],"wp:attachment":[{"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/media?parent=796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/categories?post=796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sweetweb.blog\/index.php\/wp-json\/wp\/v2\/tags?post=796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
How To: Serveur OVH Hybrid (SSD+SATA) sous openvz \u00ab In My Mind<\/a><\/p>\n\n\n\n
Heu oui, vous avez bien lu 150Go de swap, c\u2019est \u00e9norme, un peu du g\u00e2chis j\u2019avoue. Mais je veux pas ralentir mes VMs quand l\u2019une d\u2019elle va swap\u00e9.<\/p>\n\n\n\n# free -m\ntotal used free shared buffers cached\nMem: 12031 441 11589 0 9 93\n-\/+ buffers\/cache: 338 11692\nSwap: 151534 0 151534\n\n# hdparm -tT \/dev\/sdb\n\n\/dev\/sdb:\nTiming cached reads: 34736 MB in 2.00 seconds = 17384.13 MB\/sec\nTiming buffered disk reads: 1558 MB in 3.00 seconds = 519.30 MB\/sec<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
On va commencer par effacer toutes les partitions du SSD, la commande magique \u00ab lsiutil \u00bb<\/p>\n\n\n\n
Ensuite direction Raid actions : 21
Pou v\u00e9rifier si vos SSD font bien partie du volume 1, affichez les volumes : 1<\/p>\n\n\n\n2 volumes are active, 4 physical disks are active\n\nVolume 0 is Bus 0 Target 0, Type IM (Integrated Mirroring)\nVolume Name:\nVolume WWID: 024ea689498e459d\nVolume State: optimal, enabled\nVolume Settings: write caching disabled, auto configure\nVolume draws from Hot Spare Pools: 0\nVolume Size 715255 MB, 2 Members\nPrimary is PhysDisk 1 (Bus 0 Target 10)\nSecondary is PhysDisk 0 (Bus 0 Target 1)\n\nVolume 1 is Bus 0 Target 2, Type IM (Integrated Mirroring)\nVolume Name:\nVolume WWID: 0a32a61241aa4464\nVolume State: optimal, enabled\nVolume Settings: write caching disabled, auto configure\nVolume draws from Hot Spare Pools: 0\nVolume Size 75340 MB, 2 Members\nPrimary is PhysDisk 2 (Bus 0 Target 11)\nSecondary is PhysDisk 3 (Bus 0 Target 3)<\/code><\/pre>\n\n\n\n
On va effacer le volume 1, tapez 31 puis il vous demande quel volume est \u00e0 supprimer ici le 1, vous confirmez.<\/p>\n\n\n\nRAID actions menu, select an option: [1-99 or e\/p\/w or 0 to quit] 31\nVolume: [0-1 or RETURN to quit] 1\nAll data on Volume 1 will be lost!\nAre you sure you want to continue? [Yes or No, default is No] Yes\nVolume 1 is being deleted\nRAID ACTION returned IOCLogInfo = 00000001<\/code><\/pre>\n\n\n\n
L\u00e0 on voit deux disques de libres.<\/p>\n\n\n\nRAID actions menu, select an option: [1-99 or e\/p\/w or 0 to quit] 30\n\nB___T___L Type Vendor Product Rev Disk Blocks Disk MB\n1. 0 2 0 Disk ATA INTEL SSDSA2M080 02HD 156301488 76319\n2. 0 3 0 Disk ATA INTEL SSDSA2M080 02HD 156301488 76319\n\nTo create a volume, select 2 or more of the available targets\nselect 2 to 10 targets for a mirrored volume\nselect 2 to 10 targets for a striped volume\n\nSelectionnez le premier : 1, puis le deuxi\u00e8me : 2.\nSelect a target: [1-2 or RETURN to quit] 1\nSelect a target: [1-2 or RETURN to quit] 2\n\n2 physical disks were created<\/code><\/pre>\n\n\n\nSelect volume type: [0=Mirroring, 1=Striping, default is 0] 1\nSelect volume size: [1 to 151536 MB, default is 151536]\nSelect stripe size: [4 to 256 KB, default is 64]\nEnable write caching: [Yes or No, default is Yes]\nZero the first and last blocks of the volume? [Yes or No, default is No]\nSkip initial volume resync? [Yes or No, default is No]\n\nVolume was created<\/code><\/pre>\n\n\n\nRAID actions menu, select an option: [1-99 or e\/p\/w or 0 to quit] 1\n\n2 volumes are active, 4 physical disks are active\n\nVolume 0 is Bus 0 Target 0, Type IM (Integrated Mirroring)\nVolume Name:\nVolume WWID: 024ea689498e459d\nVolume State: optimal, enabled\nVolume Settings: write caching disabled, auto configure\nVolume draws from Hot Spare Pools: 0\nVolume Size 715255 MB, 2 Members\nPrimary is PhysDisk 1 (Bus 0 Target 10)\nSecondary is PhysDisk 0 (Bus 0 Target 1)\n\nVolume 1 is Bus 0 Target 2, Type IS (Integrated Striping)\nVolume Name:\nVolume WWID: 0d71b19c9d6d48f2\nVolume State: optimal, enabled\nVolume Settings: write caching enabled\nVolume Size 151536 MB, Stripe Size 64 KB, 2 Members\nMember 0 is PhysDisk 2 (Bus 0 Target 11)\nMember 1 is PhysDisk 3 (Bus 0 Target 3)<\/code><\/pre>\n\n\n\n
On va v\u00e9rifier sous quel nom sont les SSD, tapez fdisk -l<\/p>\n\n\n\n# fdisk -l\n\nDisk \/dev\/sda: 749.9 GB, 749999226880 bytes\n255 heads, 63 sectors\/track, 91182 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\n\nDevice Boot Start End Blocks Id System\n\/dev\/sda1 * 1 9562 76800993 83 Linux\n\/dev\/sda2 9562 9627 524288 82 Linux swap \/ Solaris\n\/dev\/sda3 9627 91182 655094102+ f W95 Ext\u2019d (LBA)\n\/dev\/sda5 9627 91182 655094102 8e Linux LVM\n\nDisk \/dev\/sdb: 158.8 GB, 158897012736 bytes\n255 heads, 63 sectors\/track, 19318 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\n\nDisk \/dev\/sdb doesn\u2019t contain a valid partition table<\/code><\/pre>\n\n\n\n# fdisk \/dev\/sdb<\/code><\/pre>\n\n\n\nCommand (m for help): m\nCommand action\na toggle a bootable flag\nb edit bsd disklabel\nc toggle the dos compatibility flag\nd delete a partition\nl list known partition types\nm print this menu\nn add a new partition\no create a new empty DOS partition table\np print the partition table\nq quit without saving changes\ns create a new empty Sun disklabel\nt change a partition\u2019s system id\nu change display\/entry units\nv verify the partition table\nw write table to disk and exit\nx extra functionality (experts only)<\/code><\/pre>\n\n\n\nCommand (m for help): l\n\n0 Empty 1e Hidden W95 FAT1 80 Old Minix bf Solaris\n1 FAT12 24 NEC DOS 81 Minix \/ old Lin c1 DRDOS\/sec (FAT-\n2 XENIX root 39 Plan 9 82 Linux swap \/ So c4 DRDOS\/sec (FAT-\n3 XENIX usr 3c PartitionMagic 83 Linux c6 DRDOS\/sec (FAT-\n4 FAT16 <32M 40 Venix 80286 84 OS\/2 hidden C: c7 Syrinx\n5 Extended 41 PPC PReP Boot 85 Linux extended da Non-FS data\n6 FAT16 42 SFS 86 NTFS volume set db CP\/M \/ CTOS \/ .\n7 HPFS\/NTFS 4d QNX4.x 87 NTFS volume set de Dell Utility\n8 AIX 4e QNX4.x 2nd part 88 Linux plaintext df BootIt\n9 AIX bootable 4f QNX4.x 3rd part 8e Linux LVM e1 DOS access\na OS\/2 Boot Manag 50 OnTrack DM 93 Amoeba e3 DOS R\/O\nb W95 FAT32 51 OnTrack DM6 Aux 94 Amoeba BBT e4 SpeedStor\nc W95 FAT32 (LBA) 52 CP\/M 9f BSD\/OS eb BeOS fs\ne W95 FAT16 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi ee EFI GPT\nf W95 Ext\u2019d (LBA) 54 OnTrackDM6 a5 FreeBSD ef EFI (FAT-12\/16\/\n10 OPUS 55 EZ-Drive a6 OpenBSD f0 Linux\/PA-RISC b\n11 Hidden FAT12 56 Golden Bow a7 NeXTSTEP f1 SpeedStor\n12 Compaq diagnost 5c Priam Edisk a8 Darwin UFS f4 SpeedStor\n14 Hidden FAT16 <3 61 SpeedStor a9 NetBSD f2 DOS secondary\n16 Hidden FAT16 63 GNU HURD or Sys ab Darwin boot fb VMware VMFS\n17 Hidden HPFS\/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE\n18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto\n1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep\n1c Hidden W95 FAT3 75 PC\/IX be Solaris boot ff BBT<\/code><\/pre>\n\n\n\nCommand (m for help): n 83\nCommand action\ne extended\np primary partition (1-4)\np\nPartition number (1-4): 1\nFirst cylinder (1-19318, default 1):\nUsing default value 1\nLast cylinder or +size or +sizeM or +sizeK (1-19318, default 19318):\nUsing default value 19318<\/code><\/pre>\n\n\n\n# fdisk \/dev\/sdb\nCommand (m for help): t 83\nSelected partition 1\nHex code (type L to list codes): 82\nChanged system type of partition 1 to 82 (Linux swap \/ Solaris)\n\nCommand (m for help): w\nThe partition table has been altered!\n\nCalling ioctl() to re-read partition table.\nSyncing disks.<\/code><\/pre>\n\n\n\n# fdisk -l\n\nDisk \/dev\/sda: 749.9 GB, 749999226880 bytes\n255 heads, 63 sectors\/track, 91182 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\n\nDevice Boot Start End Blocks Id System\n\/dev\/sda1 * 1 9562 76800993 83 Linux\n\/dev\/sda2 9562 9627 524288 82 Linux swap \/ Solaris\n\/dev\/sda3 9627 91182 655094102+ f W95 Ext\u2019d (LBA)\n\/dev\/sda5 9627 91182 655094102 8e Linux LVM\n\nDisk \/dev\/sdb: 158.8 GB, 158897012736 bytes\n255 heads, 63 sectors\/track, 19318 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\n\nDevice Boot Start End Blocks Id System\n\/dev\/sdb1 1 19318 155171803+ 82 Linux swap \/ Solaris<\/code><\/pre>\n\n\n\n# mkswap -c \/dev\/sdb1<\/code><\/pre>\n\n\n\n# Setting up swapspace version 1, size = 158895919 kB<\/code><\/pre>\n\n\n\n# swapoff \/dev\/sda2<\/code><\/pre>\n\n\n\n# swapon \/dev\/sdb1<\/code><\/pre>\n\n\n\n# nano \/etc\/fstab<\/code><\/pre>\n\n\n\n\/dev\/sda1 \/ ext3 errors=remount-ro 0 1\n#\/dev\/sda2 swap swap defaults 0 0\n\/dev\/sdb1 swap swap defaults 0 0\n#\/dev\/vg\/lv1 \/vps ext3 defaults 1 2\nproc \/proc proc defaults 0 0\nsysfs \/sys sysfs defaults 0 0\ntmpfs \/dev\/shm tmpfs defaults 0 0\ndevpts \/dev\/pts devpts defaults 0 0<\/code><\/pre>\n\n\n\n# mount -a<\/code><\/pre>\n\n\n\n# free -m\ntotal used free shared buffers cached\nMem: 12028 436 11592 0 9 90\n-\/+ buffers\/cache: 336 11692\nSwap: 151534 0 151534<\/code><\/pre>\n\n\n\n# hdparm -tT \/dev\/sdb\n\n\/dev\/sdb:\nTiming cached reads: 34736 MB in 2.00 seconds = 17384.13 MB\/sec\nTiming buffered disk reads: 1558 MB in 3.00 seconds = 519.30 MB\/sec<\/code><\/pre>\n\n\n\n# hdparm -tT \/dev\/sda\n\n\/dev\/sda:\nTiming cached reads: 33924 MB in 2.00 seconds = 16977.16 MB\/sec\nTiming buffered disk reads: 352 MB in 3.01 seconds = 116.95 MB\/sec<\/code><\/pre>\n\n\n\n