3 ms·

> For example 14TB drives sell for $240 Where? Also, is it worthwhile to buy hard drives explicitly for NAS when you're using ZFS? For example, Seagate has the

> For example 14TB drives sell for $240 Where? Also, is it worthwhile to buy hard drives explicitly for NAS when you're using ZFS? For example, Seagate has the IronWolf product line explicitly for NAS and cost more.

gen220 4y ago
https://diskprices.com/?locale=us&condition=new&capacity=14-&disk_types=external_hdd,external_hdd25,internal_hdd,internal_hdd25,internal_sshd,internal_sas,external_ssd,internal_ssd,m2_ssd,m2_nvme,u2 https://diskprices.com/?locale=us&condition=new&capacity=14-...
mrb 4y ago
I looked at a popular line (Seagate X16) here: https://www.amazon.com/dp/B07T63FDJQ https://www.amazon.com/dp/B07T63FDJQ - $237.99 right now Drives branded for NAS applications differ slightly from mainstream drives. For example Seagate claims the IronWolf is "designed to reduce vibration, accelerate error recovery and control power consumption" which essentially means the drive head actuators will be operated more gently (reduced vibration) which slightly increases latency and slightly reduces power consumption, and also the firmware is configured so that it does fewer retries on I/O errors, so the disk commands time out more quickly in order to pass the error more quickly to the RAID/ZFS layer (why wait a minute of hardware retries when the RAID can just rebuild the sector from parity or mirror disks.) IMHO for home use, none of this is important. Vibration is only an issue in flimsy chassis, or extreme situations like dozens of disks packed tightly together, or extreme noise as found in a dense data center (see the video of a Sun employee shouting at a server). And whether you have to wait a few seconds vs a few minutes for an I/O operation to timeout when a disk starts failing is completely unimportant in a non-business critical environment like a a home NAS.

3 ms·

> For example 14TB drives sell for $240 Where? Also, is it worthwhile to buy hard drives explicitly for NAS when you're using ZFS? For example, Seagate has the

by octopoc 4y ago

gen220 4y ago
https://diskprices.com/?locale=us&condition=new&capacity=14-&disk_types=external_hdd,external_hdd25,internal_hdd,internal_hdd25,internal_sshd,internal_sas,external_ssd,internal_ssd,m2_ssd,m2_nvme,u2 https://diskprices.com/?locale=us&condition=new&capacity=14-...
mrb 4y ago
I looked at a popular line (Seagate X16) here: https://www.amazon.com/dp/B07T63FDJQ https://www.amazon.com/dp/B07T63FDJQ - $237.99 right now Drives branded for NAS applications differ slightly from mainstream drives. For example Seagate claims the IronWolf is "designed to reduce vibration, accelerate error recovery and control power consumption" which essentially means the drive head actuators will be operated more gently (reduced vibration) which slightly increases latency and slightly reduces power consumption, and also the firmware is configured so that it does fewer retries on I/O errors, so the disk commands time out more quickly in order to pass the error more quickly to the RAID/ZFS layer (why wait a minute of hardware retries when the RAID can just rebuild the sector from parity or mirror disks.) IMHO for home use, none of this is important. Vibration is only an issue in flimsy chassis, or extreme situations like dozens of disks packed tightly together, or extreme noise as found in a dense data center (see the video of a Sun employee shouting at a server). And whether you have to wait a few seconds vs a few minutes for an I/O operation to timeout when a disk starts failing is completely unimportant in a non-business critical environment like a a home NAS.