Hi guys-We a large 500 TB pool with 4x 8 TB nvme cache drives. From what I can see with zpool iostat -v, they are barely touched. What optimizations can I...
ZFS has several features to help improve performance for frequent access data read operations. One is Adaptive Replacement Cache (ARC), which is uses the server memory (RAM). The other is second level adaptive replacement cache (L2ARC), or cache drives added to ZFS storage pools. These cache...
which is uses the server memory (RAM). The other is second level adaptive replacement cache (L2ARC), or cache drives added to ZFS storage pools. These cache drives are multi-level cell (MLC) SSD drives and, while slower than system memory,...
Feature Support Enabled Value Vendor read ahead yes yes write cache yes no flush cache yes yes Write cache isn't enabled on your SSDs; this is typical behavior for SSDs behind a RAID card. ZFS controls the write cache on your devices and will handle flushes for stability. Again, please ...
[ 0.015999] Unknown kernel command line parameters "BOOT_IMAGE=/ROOT/22.12.2@/boot/vmlinuz-5.15.79+truenas zfsforce=1 pcie_acs_override=downstream", will be passed to user space. [ 0.016931] Dentry cache hash table entries: 4194304 (order: 13, 33554432 bytes, linear) ...
ea 00 00 00 2c 00 40 00 00:34:13.872 FLUSH CACHE EXT SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 24450 - # 2 Extended offline Completed without error 00...
GitHub - ivanhao/pvetools: proxmox ve tools script(debian9+ can use it).Including email, samba, NFS set zfs max ram, nested virtualization ,docker , pci passthrough etc. for english user,please look the end of readme. GVT-G核显拆分 ...
I like these SanDisk Ultra Fit drives because of the tiny form factor - they'll practically be flush with the back of the case. So you can leave them installed without worrying about snapping off a USB stick, even if you need to move the server around for any reason. The other ...
cache drives are multi-level cell (MLC) SSD drives and, while slower than system memory, still much faster than standard hard drives. ZFS (and TrueNAS) uses all of the RAM installed in a system to make the ARC as large as possible, but this can be very expensive. Cache drives provide...
cache drives are multi-level cell (MLC) SSD drives and, while slower than system memory, still much faster than standard hard drives. ZFS (and TrueNAS) uses all of the RAM installed in a system to make the ARC as large as possible, but this can be very expensive. Cache drives provide...