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High Sierra not working like Sierra or El Capitan....  

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Posts: 8
Customer
(@tmuller)
Active Member
Joined: 4 years ago

Under Sierra and El Capitan, if I needed to swap drives, all I did was pull out the original, wait until soft raid detected the removal and inserted the new disk, initialize it and then add it to the volume. This is a RAID 5 volume I was doing this too.

Under High Sierra, this does not work. It believes the disk is the same disk once you insert one back in the same location as previously removed.

Not sure why this was changed but this is a real PITA to manage disks with this behavior (at least for me).

Most of the time, I have to shutdown, remove the disk, boot up without it, then shutdown AGAIN and boot up with the new disk installed to get similar behavior to previous OS's.

7 Replies
Posts: 2278
Moderator
(@softraid-support)
Member
Joined: 5 years ago

This seems like a hardware issue. What is your hardware configuration? What enclosures are you using?

SoftRAID should work the same for replacing disks in a RAID volume under all OS X releases.

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Posts: 8
Customer
(@tmuller)
Active Member
Joined: 4 years ago

This seems like a hardware issue. What is your hardware configuration? What enclosures are you using?

SoftRAID should work the same for replacing disks in a RAID volume under all OS X releases.

Again, this is NOT a softraid issue. It's OS disk detection issue. Sorry if that wasn't clear.

When prior OS's detected a disk, it would say 'wow a new disk'. Under High Sierra, it's like "oh, you re-inserted that disk, what are you doing without shutting me down removing and reinserting a disk'.

I continue to have OS disk detection issues even though the hardware is inserted and working fine. It's random. if I shutdown completely and power back on, the system sees them fine. If I do ANYTHING, I mean ANYTHING when the system is running, HS gets lost with what is going on with the disk and the next time I reboot, the RAID loses disks.

I have a 2009 Mac Pro using internal disks with onboard controllers.... None of this did this under Sierra or El Cap, never once.

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Posts: 2278
Moderator
(@softraid-support)
Member
Joined: 5 years ago

Are these internal disks, or are they on a third party SATA card?

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Posts: 8
Customer
(@tmuller)
Active Member
Joined: 4 years ago

Are these internal disks, or are they on a third party SATA card?

These are disks that are internal to the chassis. I have 3 4TB disks in the apple disk slots inside my MacPro with 1 slot open. I use these in a 3 disk raid5 configuration and it consistently never sees them after a reboot, a shutdown seems to work fine.

Under Sierra (not High), this was NEVER the case.

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