fishhk1213

咁慢?...........

tkkhome

你 Seagate 5tb 有冇中 bug? 我有一隻中左

=.=

我隻WD Gold 10TB full format用左14個鐘多D
skydreamer888 發表於 2017-7-6 15:59

    ching 係咪單format 一隻計?如果行raid咪仲大鑊?

skydreamer888

ching 係咪單format 一隻計?如果行raid咪仲大鑊?
=.= 發表於 2017-7-7 02:44

係單獨一隻

但RAID應該冇咩太大影響掛，影響時間嘅主要因素係一隻硬碟嘅sequential performance，RAID時係幾隻硬碟一齊

macis

樓主最後用咗幾耐format?

ryanpang

我記得format過一隻2T，用左超過24小時
自此之後買新碟都係快速算了

harryytm

係未好似 N 年前要入BIOS 做 LOW LEVEL FORMAT.
rhino 發表於 2017-7-6 16:25

喺好耐好耐以前嘅硬碟，完全靠硬碟控制卡去控制磁頭去讀寫數據，嗰個年代嘅硬碟上面會有一個出廠壞磁區表，要做Low Level Format嘅時候喺BIOS輸入壞區資料，之後先至可以Format嚟用。

Defects? . . . But Isn't My Drive PERFECT?

No. One of the BIGGEST LIES being told to users of contemporary mass storage systems -- and their operating systems -- is that their drives are "flawless."

THE TRUTH IS that the surfaces of our hard disks are littered with manufacturing variations which adversely affect the surface's ability to retain and represent the data stored there.

Before drives became "intelligent", and able to hide their defective regions, they wore their defects out on their sleeves. The photo below shows a typical RLL drive of that era with a long list of the "known defects" at the time of manufacture.

Why would any manufacturer "advertise" their drive's defects in this manner? Because the purchaser of the drive was required to manually enter this list into the system's low-level formatting program so that the sectors containing those defective spots could be "marked bad" and prevented from ever being used to hold data. As you can imagine, people did not appreciate buying a "new" drive that contained defects. So they'd select the drives with the shortest defect lists, leaving the worst drives for the next guy who didn't know any better.

The instant our drives became intelligent, carrying their own built-in controllers, the very first thing to disappear from the outside of the drive were the defect lists.

An "intelligent" drive's on board brain works to make the drive appear "defect free" by managing a pool of spare sectors and "redirecting" any accesses to the drive's internally defective sectors to the corresponding "reallocated" spare sector. Thus, users all believed that drives became perfect. Also, there was no longer any way to select the "best" drives from the herd. Nor was there any way to tell one manufacturer from another or to know what was really going on inside the drive.
https://www.grc.com/sranalysis.htm

但自從硬碟自已有控制器(硬碟上面嘅CPU)同Firmware開始，之後仲加埋S.M.A.R.T.，就已經無需要做Low Level Format呢樣野，喺出廠之前已經做咗，硬碟自己已經識得做壞區處理，甚至OS完全唔會知道壞區嘅存在。

kaxman

我 full format 一隻 lacie mini rugged 4T （usb 3.0) 由 09:30 去到 15:30 都有60％ ，樓主 兩粒鐘先有 1％ 真係好慢

kannet

mac os 十秒唔洗
我都唔明同windows 技術上既分別，唔明點解windows要咁慢

kaxman

mac os 十秒唔洗
我都唔明同windows 技術上既分別，唔明點解windows要咁慢
kannet 發表於 2017-7-10 17:44

   
Windows 都有快速 format 都好快
而家講緊 full format
請問你呢個 mac os 係咪都係 full format ？

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