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#1
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Don't get Shingled by SMR
A cautionary tale: https://arstechnica.com/gadgets/2020/04/caveat-emptor-smr-disks-are-being-submarined-into-unexpected-channels/ Buyer beware~that 2TB-6TB "NAS" drive you've been eyeing might be SMR Hard drives were already bad at random access I/O~but SMR disks are worse. Storage vendors, including but reportedly not limited to Western Digital, have quietly begun shipping SMR (Shingled Magnetic Recording) disks in place of earlier CMR (Conventional Magnetic Recording) disks. SMR is a technology that allows vendors to eke out higher storage densities, netting more TB capacity on the same number of platters or fewer platters, for the same amount of TB. Until recently, the technology has only been seen in very large disks, which were typically clearly marked as "archival". In addition to higher capacities, SMR is associated with much lower random I/O performance than CMR disks offer. .... -- A host is a host from coast to & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 |
#2
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Don't get Shingled by SMR
On 4/22/2020 6:55 PM, David Lesher wrote:
A cautionary tale: https://arstechnica.com/gadgets/2020/04/caveat-emptor-smr-disks-are-being-submarined-into-unexpected-channels/ Buyer beware~that 2TB-6TB "NAS" drive you've been eyeing might be SMR Hard drives were already bad at random access I/O~but SMR disks are worse. Storage vendors, including but reportedly not limited to Western Digital, have quietly begun shipping SMR (Shingled Magnetic Recording) disks in place of earlier CMR (Conventional Magnetic Recording) disks. SMR is a technology that allows vendors to eke out higher storage densities, netting more TB capacity on the same number of platters or fewer platters, for the same amount of TB. Until recently, the technology has only been seen in very large disks, which were typically clearly marked as "archival". In addition to higher capacities, SMR is associated with much lower random I/O performance than CMR disks offer. Good to know, but I actually use a disk for backup file storage, so I might actually be interested. Other than access times, are these SMR drives reliable, or is it too early to tell? Yousuf Khan |
#3
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Don't get Shingled by SMR
Hmmm, we had 4 TB CMR drives for a while until Helium arrived.
Why on earth are they making a 2 TB shingled drive? **** you WD, I am not paying for Iron Wolf to avoid shingles. |
#4
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Don't get Shingled by SMR
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#5
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Don't get Shingled by SMR
On Friday, April 24, 2020 at 5:04:04 PM UTC+8, Yousuf Khan wrote:
Also if you want to avoid shingles, then you'd have to stay away from Seagate Barracude Compute drives too. They go all of the way down to 1 TB as well. Yousuf Khan I am pretty sure you can get 1 TB on a single platter, even for 2.5" before SMR. So then Seagate are just being jerks. |
#6
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Don't get Shingled by SMR
Yousuf Khan writes:
On 4/23/2020 11:16 PM, wrote: Hmmm, we had 4 TB CMR drives for a while until Helium arrived. Why on earth are they making a 2 TB shingled drive? **** you WD, I am not paying for Iron Wolf to avoid shingles. Also if you want to avoid shingles, then you'd have to stay away from Seagate Barracude Compute drives too. They go all of the way down to 1 TB as well. update: https://www.tomshardware.com/news/wd-lists-all-drives-slower-smr-techNOLOGY -- A host is a host from coast to & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 |
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