In searching the forums, I stumbled on numerous posts defining ECC as a definitive requirement for ZFS.
When earlier this year I had "classic" raid issues, I switched to ZFS based on suggestions on this board. I guess I didn't do enough homework, as I have (and always have had) non ECC RAM.
My RAM is CMV4GX3M1A1333C9, 2*4GB sticks.
QUESTIONS:
1) Am I, and how badly am I, screwing up my ZFS backups?
2) Buying new RAM not being an option (cost and also the mobo manual says non-ecc), should I go back to "classic" raid instead of ZFS?
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it will taken offline by the end of march 2021!
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Its not possible for us to export from here and import it to the main forum!
ECC ZFS panic
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zinneken
- Starter
- Posts: 57
- Joined: 19 Jul 2013 11:07
- Status: Offline
ECC ZFS panic
NAS4Free-x64-LiveUSB-9.2.0.1.972
P8H61-M LX R2.0 with onboard Realtek 8111E/8111F, G1610 2.6GHz, 2*4GB RAM Non-ECC CMV4GX3M1A1333C9, ASMedia ASM1061 AHCI
2*2TB WD20EZRX-00DC0B0 RAID1, 1*2TB SAMSUNG HD204UI, 1*2TB WD20EZRX-00DC0B0, 1*1TB SAMSUNG HD103SI, 1*250GB Hitachi HTS545025B9SA02
2* internal USB 2 drives
P8H61-M LX R2.0 with onboard Realtek 8111E/8111F, G1610 2.6GHz, 2*4GB RAM Non-ECC CMV4GX3M1A1333C9, ASMedia ASM1061 AHCI
2*2TB WD20EZRX-00DC0B0 RAID1, 1*2TB SAMSUNG HD204UI, 1*2TB WD20EZRX-00DC0B0, 1*1TB SAMSUNG HD103SI, 1*250GB Hitachi HTS545025B9SA02
2* internal USB 2 drives
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b0ssman
- Forum Moderator
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- Location: Munich, Germany
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Re: ECC ZFS panic
unless the data you are saving on the zfs is not important to you, you need ecc ram.
please read
http://forums.freenas.org/index.php?thr ... zfs.15449/
please read
http://forums.freenas.org/index.php?thr ... zfs.15449/
Nas4Free 11.1.0.4.4517. Supermicro X10SLL-F, 16gb ECC, i3 4130, IBM M1015 with IT firmware. 4x 3tb WD Red, 4x 2TB Samsung F4, both GEOM AES 256 encrypted.
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zinneken
- Starter
- Posts: 57
- Joined: 19 Jul 2013 11:07
- Status: Offline
Re: ECC ZFS panic
then it is back to regular raid rather then ZFS 
NAS4Free-x64-LiveUSB-9.2.0.1.972
P8H61-M LX R2.0 with onboard Realtek 8111E/8111F, G1610 2.6GHz, 2*4GB RAM Non-ECC CMV4GX3M1A1333C9, ASMedia ASM1061 AHCI
2*2TB WD20EZRX-00DC0B0 RAID1, 1*2TB SAMSUNG HD204UI, 1*2TB WD20EZRX-00DC0B0, 1*1TB SAMSUNG HD103SI, 1*250GB Hitachi HTS545025B9SA02
2* internal USB 2 drives
P8H61-M LX R2.0 with onboard Realtek 8111E/8111F, G1610 2.6GHz, 2*4GB RAM Non-ECC CMV4GX3M1A1333C9, ASMedia ASM1061 AHCI
2*2TB WD20EZRX-00DC0B0 RAID1, 1*2TB SAMSUNG HD204UI, 1*2TB WD20EZRX-00DC0B0, 1*1TB SAMSUNG HD103SI, 1*250GB Hitachi HTS545025B9SA02
2* internal USB 2 drives
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Lee Sharp
- Advanced User
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Re: ECC ZFS panic
This ECC stuff amuses me. Yes, it can cause problems. It can also cause problems on MD raid. So having non-ECC is no "safer" on UFS than ZFS. And ZFS has a lot of other advantages. You just need good backups. (and shapshots are NOT backups) Memory failures on a NAS with ZFS will not be hidden long.