Bootable Raid 5 install
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Bootable Raid 5 install
I have been at this for awhile (month or so) and i am stuck. I am trying to install Linux on to 6 nas segate 6tb drives configured to raid 5 bootable. This is a new build and any help would very much be appreciated.
The motherboard is capable of sata raid 5 in the bios. Help needed thank you...
The motherboard is capable of sata raid 5 in the bios. Help needed thank you...
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
- catweazel
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Re: Bootable Raid 5 install
That's called fakeRAID. If you plan on using
mdadm
to manage the RAID array, set the disks to AHCI, not RAID. You need to read up on mdadm
.Your best approach is quite different though. I use hardware RAID 5EE, which is not the same as RAID 5 though it is similar. I have two servers each with six disks in RAID 5EE, where one acts as a backup to the other. You can pick up a single HW RAID card for under $US60, this for example, but you'll need to buy two SAS to SATA connector cables. Or this one for under $US80 including two cables. The Adaptec ASR-6805T cards I've given you links to are brand new, UEFI compatible and are bootable, and you'll get 500MB/s read performance. If you buy the cables seperately, you'll need Mini SAS SFF-8087 cables.
If you value your data then I would encourage you to consider moving to hardware RAID and give any kind of fakeRAID or softRAID a very wide berth. After a massive data loss I wouldn't touch either fakeRAID or softRAID with someone else's ten-foot pole, to be honest.
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
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Re: Bootable Raid 5 install
@catweasel,
What are you running on your servers, and are they so critical that you have a RAID and a hot stand by system?
Why not run the things from cloud instead of maintaining the infrastructure yourself?
What are you running on your servers, and are they so critical that you have a RAID and a hot stand by system?
Why not run the things from cloud instead of maintaining the infrastructure yourself?
If I have helped you solve a problem, please add [SOLVED] to your first post title, it helps other users looking for help.
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
- catweazel
- Level 19
- Posts: 9763
- Joined: Fri Oct 12, 2012 9:44 pm
- Location: Australian Antarctic Territory
Re: Bootable Raid 5 install
Have you any idea what it would cost for 22TB of cloud storage with 500 megabytes per second read speed? You know, 5 gigabits per second?deepakdeshp wrote: ⤴Fri May 17, 2019 4:28 am @catweasel,
What are you running on your servers, and are they so critical that you have a RAID and a hot stand by system?
Why not run the things from cloud instead of maintaining the infrastructure yourself?
I guess not.
$0.19 per gigabyte per month, just for accessing the data, sans 5Gb/s access, plus $0.023 per Gb per month for storage.
https://cloud.google.com/storage/pricing
Do the math.
$0.023 per Gb per month = 22 x 1000 x 0.023 = $506 per month. Yeah, right.
Now add at least 2TB/month in data transfer.
2 x 1000 x 0.19 = $380.
Pigs will fly.
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
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- Level 20
- Posts: 12337
- Joined: Sun Aug 09, 2015 10:00 am
Re: Bootable Raid 5 install
Are they Ubuntu servers? You are talking huge numbers.What requires you have 22TB storage and 2TB?/month net data? It's fascinating that you run such huge set up at a ripe young age of 86. I would like to know more about this, if possible.catweazel wrote: ⤴Fri May 17, 2019 5:03 amHave you any idea what it would cost for 22TB of cloud storage with 500 megabytes per second read speed? You know, 5 gigabits per second?deepakdeshp wrote: ⤴Fri May 17, 2019 4:28 am @catweasel,
What are you running on your servers, and are they so critical that you have a RAID and a hot stand by system?
Why not run the things from cloud instead of maintaining the infrastructure yourself?
I guess not.
$0.19 per gigabyte per month, just for accessing the data, sans 5Gb/s access, plus $0.023 per Gb per month for storage.
https://cloud.google.com/storage/pricing
Do the math.
$0.023 per Gb per month = 22 x 1000 x 0.023 = $506 per month. Yeah, right.
Now add at least 2TB/month in data transfer.
2 x 1000 x 0.19 = $380.
Pigs will fly.
If I have helped you solve a problem, please add [SOLVED] to your first post title, it helps other users looking for help.
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
- catweazel
- Level 19
- Posts: 9763
- Joined: Fri Oct 12, 2012 9:44 pm
- Location: Australian Antarctic Territory
Re: Bootable Raid 5 install
Muon-neutrino, muon-hadron, gluon-gluon-hadron interactions, VBF H → WW → llνν, Drell-Yan ττ / Mττ processes. Nothing much, only the small stuff.deepakdeshp wrote: ⤴Fri May 17, 2019 5:56 am Are they Ubuntu servers? You are talking huge numbers.What requires you have 22TB storage and 2TB?/month net data? It's fascinating that you run such huge set up at a ripe young age of 86. I would like to know more about this, if possible.
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
-
- Level 20
- Posts: 12337
- Joined: Sun Aug 09, 2015 10:00 am
Re: Bootable Raid 5 install
Great , though its beyond me to understand.catweazel wrote: ⤴Fri May 17, 2019 6:27 amMuon-neutrino, muon-hadron, gluon-gluon-hadron interactions, VBF H → WW → llνν, Drell-Yan ττ / Mττ processes. Nothing much, only the small stuff.deepakdeshp wrote: ⤴Fri May 17, 2019 5:56 am Are they Ubuntu servers? You are talking huge numbers.What requires you have 22TB storage and 2TB?/month net data? It's fascinating that you run such huge set up at a ripe young age of 86. I would like to know more about this, if possible.
If I have helped you solve a problem, please add [SOLVED] to your first post title, it helps other users looking for help.
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
Regards,
Deepak
Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
Re: Bootable Raid 5 install
Well that defeats the money savings of motherboard raid. So what raid card would be recommended for booting Linux Mint OS in raid 5 on 6 nas seagate hard drives?
tried madam and was unsuccessful in booting Linux in raid 5, only recognized 7.5 tb....
Thank you, and i appreciate all of everyone's input...
tried madam and was unsuccessful in booting Linux in raid 5, only recognized 7.5 tb....
Thank you, and i appreciate all of everyone's input...
- catweazel
- Level 19
- Posts: 9763
- Joined: Fri Oct 12, 2012 9:44 pm
- Location: Australian Antarctic Territory
Re: Bootable Raid 5 install
I gave you that information already.
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
Re: Bootable Raid 5 install
I see that now thank you....
- catweazel
- Level 19
- Posts: 9763
- Joined: Fri Oct 12, 2012 9:44 pm
- Location: Australian Antarctic Territory
Re: Bootable Raid 5 install
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.