On Wed, 6 Jan 2021 23:23:44 -0800 Ben Koenig <[email protected]> dijo:
>Last I heard WD Gold was discontinued which would explain why they >appear to be out of stock. For a small NAS you probably want to look >at WD Red or Seagate Ironwolf. Both have decent longevity but since >you are running RAID0 you are rolling the dice regardless of what you >buy. WD came out with the Gold disks only a month ago, and they are for sale on the WD website, so I doubt they have been discontinued. Interestingly, the price seems to fluctuate daily. Yesterday WD wanted 519 each, and today the price is 527. And I was looking at Tech for Less (via Newegg) which had just one in stock for 484, which today is 455. Even an eBay seller had one for 492 yesterday and today the price has been lowered to 463. What attracts me to the WD Gold drives is that they are sealed with helium inside, Helioseal (tm), lowering friction and heat (for 12TB and up). Plus, they have excellent vibration control to enhance their life in multi-bay enclosures. The warranty is five years, same as Red Pro and the high end Seagate. Plus they have longer MTBF than any other drive, and faster throughput, probably because they are 7200 RPM. But the throughput isn't really relevant, because the connection is gigabit ethernet. In fact, I wish they were 5400 RPM, for greater reliability. I did consider the high end Seagates, but over the years I have had four Seagate drives fail, all at only a couple years old. Now, all those failures were several years ago, and companies change. I am happy to admit that Seagate drives may be excellent today, but Seagate lost me as a customer by their past junk. They may have a different CEO, but the rest of their people haven't changed, and they still have the same attitudes toward quality. >As for RAID0, I want to re-iterate what Tomas pointed out. RAID0 does >not offer you any benefit and will result in losing 100% of your data >when a single disk fails. JBOD or SPAN will function exactly the same >without putting your data at risk. > >My recommendation is that you go with NAS branded disks running at >5400RPM. When you install them Synology should provide a JBOD or SPAN >option that will work just as before without scaring the living snot >out of everyone on this list. I think you are forgetting that these drives are going to create a backup solution for another set of disks, a set of four NVMe drives, also in RAID0. The rsync script that I use makes these new drives a mirror. Yes, I could lose one disk in each set at the same time, but the odds are minute. Yes I could just leave them as individual disks, and ditto for the NVMe set of disks, but there are thousands of files, so which files do I put on which disk, and how do I find a file when they are scattered on different drives? As for JBOD, that would work, but my understanding is that RAID0 offers faster performance and is easier on the hardware. Yes, JBOD might not result in 100% data loss in the event of a drive failure, but recovery of even part of the array might not be easy. And besides, I have two RAID0 arrays that are mirrors. If one of them fails I just re-create the array with new hardware and copy everything to it from the mirror. I have been using RAID0 arrays for ~20 years or so, and I have never lost any data. That's because I always use two arrays at the same time as mirrors of each other, although the mirrors are created at night with rsync, so if something fails during the day I might lose a few hours of work. I'm willing to take that risk. _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
