How To Merge or Extend Two SSD's together

Support and Help
1

Hello everyone I was wondering how to Extend two SSD’s too be as one. I have two SSD’s in my Ubuntu machine both are 500 GB. I know how to do this on one drive if it has unallocated space

I want to use both of these SSD for this Ubuntu OS

I think it’s called, creating a spanned volume, RAID 0

Thanks to you all

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Don’t bother with RAID 0 unless you have a specific need for speed without data redundancy, since if one drive goes out, you lose the whole array. RAID 0 was back in the days of slower HDD, where users were doing a lot of disk intensive activity like compiling a system and copied everything every night to a server. Your SSDs should be plenty fasts for just about any activity.

Do you want backup or more space?

1 Like
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Hello Fred thanks for the help. I want to make use of this extra SSD I have and would like to merge the extra disk with my primary one. Each disk is 500 GB I would like to have 1 TB between both. I’m probably not explaining it correctly

4

I do not use LVM, some may suggest LVM, but when across multiple drives the loss of data is again an issue.

I just create a data partition and put some or all of my data from /home’s folder, but not /home into my HDD. I now have newer larger SSD, so moved my data partition to SSD & HDD is now just for backup and test installs. Then mount & link those folders back into /home. Then data in /home is both drives. When I dual booted with Windows I had some data in NTFS & some in Linux formatted partition. Now all is in my data partition.

I only use gpt partitioning amd create at least one partition. SSDs work better if entire drive not allocated. Then create mount point, give myself ownership & permissions, update fstab with mount of partition and link folders into /home. When new install I just copy data from backup or if on same system mount same data partition in new install. from lsblk:

MODEL NAME     FSTYPE   SIZE FSUSED LABEL     PARTLABEL MOUNTPOINT UUID

      └─nvme0n1p5
               ext4   250.6G 173.5G nvme_data nvme_data /mnt/data  1a44f4af-6780-4bbd-ad0b-6385ed30830b

If mounted in /home or /media, data partition will show directly in /home. If mounted in /mnt or directly in / (root) which may suggest, only links to each folder in data partition are shown.

Folder in /home then shows link. l is link & arrow shows actual location.
lrwxrwxrwx 1 fred fred 19 Apr 27 2024 Documents -> /mnt/data/Documents/

If you want specific commands I use, I can post them. If you need exact commands not examples, we need UUID info, fstab info, desireed mount points folders in data partition.

Example:
https://askubuntu.com/questions/1013677/storing-data-on-second-hdd-mounting &
https://askubuntu.com/questions/1058756/installing-all-applications-on-a-ssd-disk-and-putting-all-files-on-hdd-disk

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Thank you Fred I will take a look at the info you provided. I will try and figure out the best method for this