The DiskUtil command at work<\/strong><\/figcaption><\/figure>\n3)<\/strong> For each drive, there will be a mount point listed in the format:<\/p>\n\/dev\/disk#<\/strong>
\n<\/em>
\nThe # is a number assigned to the drive by OS X. Find the mount points for the SSD and HDD that will make up the Fusion Drive, and write them down.<\/p>\n4)<\/strong>\u00a0Next, let\u2019s type in a command to create the logical volume group using OS X\u2019s Core Storage. This acts like a container for the pooled drives. We\u2019ll need the exact drive mount points we found in the last step – aren\u2019t you glad I had you write them down? The command has the following format:<\/p>\ndiskutil coreStorage create LOGICAL_VOL_GROUP_NAME DRIVE_1 DRIVE_2<\/em><\/strong><\/p>\nLOGICAL_VOL_GROUP_NAME is a name that defines your storage group, while DRIVE_1 is the mount point for the SSD and DRIVE_2 is the mount point for the HDD. As an example, let’s assume that we call the group name “FUSION”, that the mount point for the SSD is \/dev\/disk1 and the mount point for the HDD is \/dev\/disk2. In that case, we’ll execute the following command in Terminal:<\/p>\n
diskutil coreStorage create FUSION \/dev\/disk1 \/dev\/disk2<\/em><\/strong><\/p>\n5)<\/strong> We\u2019re almost there. The last command creates the logical volume where data is stored when we\u2019re done. This command requires that we find the LVG UUID – that\u2019s a unique identifier assigned by OS X to all storage groups. That ID is created by the command in step 4 and is displayed at \u201cCore Storage LVG UUID\u201d. Write down the ID.<\/p>\nOur final command has the format:<\/p>\n
diskutil coreStorage createVolume lvgUUID type name size<\/em><\/strong><\/p>\nYou have the LVG UUID from the last step, and that goes into the lvgUUID spot. \u201ctype\u201d refers to the file system that will be used, which should be the OS X native file system Journaled HFS+ . That is abbreviated for terminal as \u201cjhfs+\u201d. For \u201cname\u201d enter a name for the volume. OS X usually calls this \u201cMacintosh HD\u201d. The \u201csize\u201d is the volume size, which can be entered as numbers in GB, TB, or as a percentage. Since we want to use the entire storage pool as our Fusion Drive, we\u2019ll enter 100%. Here\u2019s the final command to enter (be sure to replace the lvgUUID with the one you wrote down):<\/p>\n
diskutil coreStorage createVolume 89E965C6-2AF7-4AFA-ABDC-DC49ECA31E32 jhfs+ \u201cMacintosh HD\u201d 100%<\/strong> <\/em><\/p>\n6) <\/strong>After the command has executed, you\u2019ll have a Fusion Drive and the volume should be viewable from within Disk Utility from your USB boot drive. Go ahead and install OS X on the Fusion Drive, selecting it as your installation drive.<\/p>\nDisabling a Fusion Drive<\/strong>
\nIf you should ever need to replace a bad drive in your Fusion Drive or want to upgrade either the SSD or HDD drive \u2014 or both \u2014 you\u2019ll need to disable the Fusion Drive. This simple Terminal command does the job:<\/p>\ndiskutil coreStorage delete lvgUUID<\/strong> <\/em><\/p>\nTo find the lvgUUID, just run the diskutil list command again from Terminal. Replace lvgUUID with the real identifier, and execute the command \u2014 it breaks the fused drive. Remember that all data on those combined drives is lost, so back it up first<\/a>!<\/p>\n","protected":false},"excerpt":{"rendered":"Feeling the need for speed? Back in 2012, Apple introduced the Fusion Drive to Macs in the Mac mini and iMac, merging the speed of a Solid State Drive (SSD) with the low cost of high capacity hard disk drives (HDD). The result is that users get fast boot up and app loading, while having […]<\/p>\n","protected":false},"author":81,"featured_media":36241,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":"","footnotes":""},"categories":[4],"class_list":["post-36227","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-tips"],"yoast_head":"\n
Everything You Need to Create Your Own Fusion Drive<\/title>\n<meta name=\"description\" content=\"Feeling the need for speed? Back in 2012, Apple introduced the Fusion Drive to Macs in the Mac mini and iMac, merging the speed of a Solid State Drive\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eshop.macsales.com\/blog\/36227-everything-you-need-to-create-your-own-fusion-drive\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Everything You Need to Create Your Own Fusion Drive\" \/>\n<meta property=\"og:description\" content=\"Feeling the need for speed? 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Back in 2012, Apple introduced the Fusion Drive to Macs in the Mac mini and iMac, merging the speed of a Solid State Drive","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/eshop.macsales.com\/blog\/36227-everything-you-need-to-create-your-own-fusion-drive\/","og_locale":"en_US","og_type":"article","og_title":"Everything You Need to Create Your Own Fusion Drive","og_description":"Feeling the need for speed? 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![\"Fusion_Logo\"](\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/05\/Fusion_Logo1.png\"){kind=logo}
Feeling the need for speed? Back in 2012, Apple introduced the Fusion Drive to Macs in the Mac mini and iMac, merging the speed of a Solid State Drive (SSD) with the low cost of high capacity hard disk drives (HDD). The result is that users get fast boot up and app loading, while having access to tons of storage. In this article, the Rocket Yard shows you how to create your own Fusion Drive for an older Mac to give it a major boost.<\/p>\n![\"OWC](\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/05\/DataDoubleandMini-e1462471057557.jpg\")
<\/a>![\"OWC](\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/05\/MultiMount.jpg\")
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<\/a>![\"The](\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/05\/diskutil-e1462471939518.png\")
<\/a>