• May 15, 2018 · If you compare a server with hdd vs a server with ssd (NVMe) … that is like comparing a gasoline vs a diesel. You can also create a read-cache with Devicemapper and ext4. What would be a “fair” fight 😉 I’ve used this on a Xen Infrastructure and was quite nice.
  • The "PCI-e x4" support is misleading, the 88SE9215 chip used as a SATA controller in these cards only supports PCI-e x1 link speeds (as per the datasheet). So if you are thinking (like I did) that you'll grab this and setup a sweet 8 drive SSD ZFS pool you would be better off with using your on-board controller or just using regular hard drives.
  • The Oracle 2.5” storage modules for hard disk drives (HDD) and flash read and write storage (SSD); Write Optimized Cache consisting of sets of 4 SSDs with 288GB of SLC flash storage, with a maximum write rate of about 1.3 GBytes/second, and a sustained write rate at 70% loading of 1.3 x 0.7 = 0.91 gigabytes/second;
  • ZFS, which signifies Z File System, is an innovative file system which delivers top performance for sites and online programs. One of its serious advantages is the real-time checksum comparison - each and every file features a checksum, or a digital fingerprint, and ZFS compares the checksums of all files between the different hard disks working together in a RAID.
  • Dec 24, 2020 · One of the benefits of picking an SSD in the SSD VS HDD debate is the ability to install the SDD as a boot drive. This, in effect, gives you the maximum speed that can be achieved by the SDD – if, that is, it has the capacity, and if a secondary data drive can be accommodated by your system as programs and data would be installed and stored there.
  • SSD vs HDD - Which is better for your needs and budget? Let's pit solid state drives vs hard disk drives right now and find out the answer once and for all. In the past, buying or upgrading a hard drive was a straightforward affair - You simply grabbed a hard disk drive that met your storage needs and...
  • Set ZFS blocksize parameter. sparse Use ZFS thin-provisioning. A sparse volume is a volume whose reservation is not equal to the volume size. mountpoint The mount point of the ZFS pool/filesystem. Changing this does not affect the mountpoint property of the dataset seen by zfs. Defaults to /<pool>.
  • Ubuntu 16.04 will be out soon and it seems ZFS will be natively supported. I have used ext4 for years but have read some of the newer file-systems (like the still fairly experimental btrfs) will have nifty features like better support for solid state drives (how the ssd is written to and read so as to prolong drive life).

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Oct 27, 2020 · The price of hard drives is always dropping so you don’t really want to buy more much than you’ll need before they start failing. Consider that in ZFS you shouldn’t run more than 70% full (with 80% being the max) for your typical NAS applications including VMs on NFS. But if you’re planning to use iSCSI you shouldn’t run more than 50% ...
I enabled this encryption with a HDD password in the UEFI, but from what I've read, BIOS- or UEFI-based HDD password can be unreliable (and you have no way to know whether your model implements it correctly until you get hacked). I searched on how to enable OPAL encryption, but this information seems to be inexistent.

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Oracle ZFS is a proprietary file system and logical volume manager. ZFS is scalable, and includes extensive protection against data corruption, support for high storage capacities, efficient data compression, integration of the concepts of filesystem and volume management, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, RAID-Z, native NFSv4 ACLs, and can ...
Aug 30, 2019 · ZFS considerations (Performance, RAIDz vs RAID and Mirrors) Let’s talk a little bit more about ZFS, the difference of RAIDz vs normal RAID and how to scale performance with ZFS! Migrating data using ZFS send and receive, importing a ZFS pool and creating a ZFS mirror pool

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Aug 23, 2019 · [Note 9-Apr-2020: Since writing this post I migrated my data HDDs to ZFS; I write about ZFS, and on how to cache on SSD, in a more recent post. The OS remains on SSD using LVM.] [Updated 7-Nov-2019: clarified need for thin-provisioning-tools package.] [Updated 30-Aug-2019: added instructions for setting caching mode to writeback.]
Apr 23, 2019 · An older benchmark from Tom’s Hardware shows virtually no difference between an SSD and HDD in in-game performance. So, if you have an aging gaming PC, and you were planning on upgrading to an SSD because you thought that might help you run your games at a more acceptable framerate, you’d be better off using the money you were going to spend on an SSD to get a newer graphics card instead.