Davide Zanon
Dabbler
- Joined
- Jan 25, 2017
- Messages
- 44
Hi everybody,
sorry for the long and confusing post but I'm trying to explain my needs as best as I can.
I need to upgrade the mobo/ram/cpu of my backup server which is an old Netgear Readydata 5200 with
TrueNAS-13.0-U3.1 installed and I want to/must keep the original chassis for these reasons mainly:
It Just Works (so no need to spend other money)
it has two 700W hot-swappable redundant PSUs
it has 12x3.5" HDD bays (already filled up)
The reason I want to upgrade is because of deduplication, the system is always starving for resources and it often
crawls to a halt, forcing me to hard reset which is not good for the disks.
The system right now has "only" 32gb of RAM and that's the max supported RAM of this motherboard, but if I've
read ZFS Deduplication correctly this is not enough because when running "zpool status -D" I get this numbers
This system specs are:
4-pin spare cable, so I need to keep this in mind when looking for a new mobo/CPU.
So far this is what I'm oriented on buying that should fit in the chassis:
is it a good solution to speed up deduplication and data access given that I have spinning disks on my pool?
The new mobo has SATA connectors like the old one but I don't have extra space in the front bay for installing
other disks (they would be connected to the SAS controller anyway).
I was thinking at some kind of adapter to install 2.5" disks in the chassis PCI slots (not a SATA2PCIe adapter)
but I can't find one, or I don't know how to properly search for it.
NVMEs are another problem, the new motherboard has only one M2 slot, but there are 2 Oculink connectors that
I don't really know how to use, I tried looking for some Oculink2nvme adapter to install on the PCI chassis slots
but I can't find anything useful, can someone please help me with this too?
Other suggestions for speeding up the system, like ZIL/SLOG/L2ARC?
I really need deduplication because I can keep way more data than simply enabling compression, I already made
a test on another system with only compression enabled (without dedup) and it gets filled up in a few days of
backup instead of months with dedup on the production system (my current dedup ratio is always over 2.66x).
Please kindly help, any suggestions are welcomed, tel me if you need more infos or clarifications.
Thanks
sorry for the long and confusing post but I'm trying to explain my needs as best as I can.
I need to upgrade the mobo/ram/cpu of my backup server which is an old Netgear Readydata 5200 with
TrueNAS-13.0-U3.1 installed and I want to/must keep the original chassis for these reasons mainly:
It Just Works (so no need to spend other money)
it has two 700W hot-swappable redundant PSUs
it has 12x3.5" HDD bays (already filled up)
The reason I want to upgrade is because of deduplication, the system is always starving for resources and it often
crawls to a halt, forcing me to hard reset which is not good for the disks.
The system right now has "only" 32gb of RAM and that's the max supported RAM of this motherboard, but if I've
read ZFS Deduplication correctly this is not enough because when running "zpool status -D" I get this numbers
which tells me that it needs at least 36gb of ram right now to manage the DDT table (366*101436443, correct?).dedup: DDT entries 101436443, size 611B on disk, 366B in core
This system specs are:
I would like to upgrade to something like this without spending too much:(2U chassis)
Supermicro X8SI6-F motherboard with 2 SAS ports (one unused), 2x1GB eth, IPMI controller
Intel Xeon X3450 with 8 core @ 2.67GHz
32gb RAM DDR3 non-ECC
RAIDZ1 pool of 12x3TB spinning disks, 36TB total (connected to the SAS controller)
The PSU has one 24-pin ATX power cable and one 8-pin CPU power cable in use, and one(keep the 2U chassis)
motherboard with 2 SAS connectors, nvme slot(s), 2x10GB ethernet, IPMI controller
Intel Xeon Silver/Gold CPU with at least 8C/16T
64gb DDR4 ECC RAM (should be enough for my pool... right?)
2 SSDs/NVMEs in mirror as special vdev for storing DDT table
keep the pool/disks because I don't need more space nor speed (with SSDs for example)
4-pin spare cable, so I need to keep this in mind when looking for a new mobo/CPU.
So far this is what I'm oriented on buying that should fit in the chassis:
Now as for storing DDT table on mirrored SSDs/NVMEs:Motherboard: Supermicro X11SPH-nCTPF, it has everything I listed above with the right power connectors
CPU: Intel Xeon Silver 4208, it has 8 core/16 thread @2.10Ghz, I hpe it is sufficient for the foreseeable future
RAM: 4x16gb@2400Mhz (no particular brand), I wouldn't buy something with higher clock if it's not strictly necessary
is it a good solution to speed up deduplication and data access given that I have spinning disks on my pool?
The new mobo has SATA connectors like the old one but I don't have extra space in the front bay for installing
other disks (they would be connected to the SAS controller anyway).
I was thinking at some kind of adapter to install 2.5" disks in the chassis PCI slots (not a SATA2PCIe adapter)
but I can't find one, or I don't know how to properly search for it.
NVMEs are another problem, the new motherboard has only one M2 slot, but there are 2 Oculink connectors that
I don't really know how to use, I tried looking for some Oculink2nvme adapter to install on the PCI chassis slots
but I can't find anything useful, can someone please help me with this too?
Other suggestions for speeding up the system, like ZIL/SLOG/L2ARC?
I really need deduplication because I can keep way more data than simply enabling compression, I already made
a test on another system with only compression enabled (without dedup) and it gets filled up in a few days of
backup instead of months with dedup on the production system (my current dedup ratio is always over 2.66x).
Please kindly help, any suggestions are welcomed, tel me if you need more infos or clarifications.
Thanks