greg.freemyer@gmail.com composed on 2015-09-26 12:29 (UTC-0400):
Felix Miata wrote:
So, yes, space wasting!
Just one comment
"However, by modifying the length of the data field through the implementation of Advanced Format using 4096-byte sectors, hard disk drive manufacturers could increase the efficiency of the data surface area by five to thirteen percent while increasing the strength of the ECC."
https://en.wikipedia.org/wiki/Disk_sector says that.
So, sticking with 512 byte sectors effectively wastes 5 to 13% of the potential storage on the platter due to inefficient headers/footers.
I knew about that from my reading of http://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-m... long ago.
You should buy what works best for you, but I suspect over 95% of users go with the default 4kb filesystem page.
Wasting potential storage area on a platter is a non-issue from a user perspective. Probably few users who are not avid collectors of images, music and videos will ever use as much as half of a .5TB storage device, the smallest capacity 3.5" form factor rotating rust any of the manufacturers have made for some time. RR capacities marketed are arbitrary. Wasting 5%-13% might matter if it meant getting 6.2T or 6.3T instead of 6.1T for the same money. For someone replacing a dead 250G it won't matter one iota. OTOH, the higher the data density, the smaller the debris size that can cause loss of use of a sector, while the larger the sector size, the more data that can be lost with loss of a sector. Continued density increases benefit the manufacturers far more than users. The stronger ECC is needed to compensate for the increased fragility and risk. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org