AppleRAID-1 & SoftRAID 5.8.4 - Catalina Issues https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/ SoftRAID Discussion Board en-US Tue, 28 Apr 2026 20:05:45 +0000 wpForo 60 RE: AppleRAID-1 & SoftRAID 5.8.4 https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-10840 Wed, 21 Jul 2021 04:41:33 +0000 @bjarnedm

Good, its possible the early ZFS performance issues on the Mac are resolved. (I have not tested ZFS on the Mac in several years) I know on linux, it has relatively solid performance. It is still for advanced users, however.

We use ZFS in some of our higher end products, such as workgroupd servers, etc.

]]> Catalina Issues SoftRAID Support https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-10840 RE: AppleRAID-1 & SoftRAID 5.8.4 https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9279 Sun, 02 May 2021 12:15:28 +0000 @softraid-support I've un-installed the SoftRAID driver & gone full OpenZFS RAIDZ-1 on 4 x 6TB HDs, so at present I don't have the capability to test, as I don't have any surplus HDs I can test on.

Another reason for me going OpenZFS is the advanced capabilities such as datasets & encryption on a per dataset - it's almost like APFS

As to OpenZFS being slow, I don't have any issues as far as I can see :

543

 My workload is primarily VMs (Linux & Windows Server testing) & I've succeeded in getting to 256 GB RAM : 32 GB RAM modules in cMP

I've used OpenCore to get to Catalina. Before that, I used dosdude1 Catalina Patcher. When both OpenZFS 2.0.0 & Carbon Copy Cloner works without issues under Big Sur, I'm upgrading to that.

Except from SoftRAID, I'm a very satisfied OWC customer & I do plan to continue shopping with you.

]]> Catalina Issues BjarneDM https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9279 RE: AppleRAID-1 & SoftRAID 5.8.4 https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9267 Sat, 01 May 2021 15:21:40 +0000 Its not conceivable how this can be, as all the two respective drivers to is tell the OS who owns a disk. I have never seen this before and we test with Apple RAID and SoftRAID volumes frequently.

Its possible there is a SMART issue, we can test that. Go to SoftRAID preferences and disable SMART checks. Just to see if it makes a difference.

I am guessing ZFS is really slow on that machine. Give some feedback on performance if you don't mind.

You are running Mojave on this machine?

]]> Catalina Issues SoftRAID Support https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9267 AppleRAID-1 & SoftRAID 5.8.4 https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9266 Sat, 01 May 2021 13:51:00 +0000 I've got a cMP 2010 w/ 2 x 4TB & 2 x 6TB HDs in the trays. Booting is from a Samsung SSD on a PCIe Card

Now, the two 6TB HDs are presently in AppleRAID-1. When I installed SoftRAID 5.8.4, the read/write speed to this AppleRAID fell to about 10 % of what it was beforehand. Removing the SoftRAID driver resolved the issue. Not using AppleRAID-1 isn't an option for me, as I need several of the features in APFS.

My idea was installing the two 4TB HDs in the DVD bays, buying 2 x 6TB HDs more, and formatting the resulting 4 x 6TB HDs in SoftRAID-5; but with this issue rearing it's ugly head, I've decided to go with OpenZFS instead. (& - yes - I've bought a license for SoftRAID)

Conclusion : SoftRAID is incompatible w/ AppleRAID-1.

]]> Catalina Issues BjarneDM https://forums.softraid.com/catalina-issues/appleraid-1-softraid-5-8-4/#post-9266