Does ZFS need ECC RAM?
Conceptually, ZFS does not require ECC memory any more as any other file system. There’s nothing special about ZFS that requires/encourages the use of ECC RAM more so than any other filesystem. If you use UFS, EXT, NTFS, btrfs, etc without ECC RAM, you are just as much at risk as if you used ZFS without ECC RAM.
How much RAM do I need for ZFS?
ZFS on FreeNAS typically requires a base 8GB plus an additional 1GB per TB of disk space to get “decent” performance. This softens a bit as the number of TB managed gets out past maybe 20 or so. But some more demanding workloads will require substantially more RAM.
Does FreeNAS really need ECC RAM?
FreeNAS does not require much in the way of a CPU and with 8 GB of memory it will run very well. ECC RAM is used by Xeon processors and FreeNAS does not need that much processing power. So, no FreeNAS does not need ECC RAM.
How important is ECC RAM for NAS?
If its for general use, you don’t need really need ECC ram – your computers probably don’t have it, so data can’t be THAT critical. Typical NAS appliances do not use ECC RAM. If its between buying ECC RAM and more redundant disk – more disk should win out pretty much every time.
Is ECC needed?
Such a memory error can also lead to a data transcription error, which could lead to misplacing a decimal or changing a number. ECC memory is a necessity in the medical industry too.
Is ECC needed for Unraid?
ECC will be a lot more stable. So if you don’t want crashes or errors on unraid, you’d want to stick with ecc. You can’t run both or the ecc will probably just run like non-ecc.
How much RAM do I need for ZFS deduplication?
For every TB of pool data, you should expect 5 GB of dedup table data, assuming an average block size of 64K. This means you should plan for at least 20GB of system RAM per TB of pool data, if you want to keep the dedup table in RAM, plus any extra memory for other metadata, plus an extra GB for the OS.
Does ZFS use a lot of RAM?
At that point, more RAM offers no benefit. ZFS data deduplication does not require much more ram than the non-deduplicated case. Performance will depend heavily on IOPS when the DDT entries are not in cache, but the system will run slowly even with miniscule RAM.
Do I need ECC for Truenas?
If you care about your data, you should be using ECC. That said, there’s nothing about FreeNAS or ZFS that makes non-ECC RAM any more dangerous than it is for any other OS or filesystem, and ZFS will still protect your data in ways that ext2/3/4/XFS/etc.
Do Synology NAS use ECC?
I am aware most Synology units do not use ECC RAM; but the Rackstations and higher-end Synology units do use ECC RAM.
Who needs ECC RAM?
When you’re building a professional workstation or a server that needs to run 24/7, ECC memory is a must.
What is ECC memory good for?
Error-correcting code memory (ECC memory) is a type of computer data storage that can detect and correct the most common kinds of internal data corruption. ECC memory is used in most computers where data corruption cannot be tolerated under any circumstances, such as for scientific or financial computing.