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How can I use full space on my server with Webmin? #839

Open giggioman00 opened 6 years ago

giggioman00 commented 6 years ago

Please sorry, I understand this is only for technical issues and I should ask this to webmin community but they appears to be down for days now and I don't know where to ask this... I need help please

I've bought a so you start server with the following hard disks: 3x120GB SSD So, there should be 3 SSD with 120GB space each one. Well, I don't know why but webmin let me use only 120 GB. I want to use the other space but I'm unable to do this.

If I go Hardware -> linux raid this is what I get

[code]/dev/md1 active RAID1 (Mirrored) 19.53 GB /dev/sda1 | /dev/sdb1 | /dev/sdc1 /dev/md2 clean RAID1 (Mirrored) 91.75 GB /dev/sda2 | /dev/sdb2 | /dev/sdc2[/code]

So, 120 GB out of 360 GB is mounted.

Now, to use the other space, should I create a new raid? Or what should I do? If I try to create a new raid I'm getting an error: No free partitions are available for RAID.

Indeed, Under Hardware -> Partitions on Local Disks I see 3 hard disks, each one with 3 partitions, the following:

[code]1 Linux EXT 20 GB 1 2550 /dev/md1 2 Linux RAID 93.96 GB 2550 14528 /dev/md2 3 530.13 MB 14528 14593 Virtual memory[/code]

so, every disk own a partition of 93.96 GB *3 to /dev/md2 but as I told above /dev/md2 only let me use 91.75 GB... why?

jcameron commented 6 years ago

If you have 3 120 GB drives in a mirrored RAID setup, then the usable space will only be 120 GB. However, your data is protected against even two of those drives failing because it's mirrored.

giggioman00 commented 6 years ago

Thank you... it isn't possible to change the mirrored RAID setup?

gnadelwartz commented 6 years ago

whats strange is that you have 3 discs in a mirror setup, I would expect to have 2 disc in a mirror ... usually I use a raid 5 with 3+ discs. There is no direct way to convert from raid1 to raid5, you always have to backup end restore all data ...

http://stevesubuntutweaks.blogspot.de/2015/06/converting-raid1-array-to-raid5-using.html