loveyincc

talk to their CS today, he ask me provide them the serial nbr for checking.

just check my ssd and  ...
dieago 發表於 2011-3-30 22:57

我都係OCZ VERTEX 2 60G
同樓上位好似好大分別?

tbpatrick

好奇怪隻SSD用0左個幾月個POWER-ON HOURS COUNT都仲係停留0左0係"10"

Midas

talk to their CS today, he ask me provide them the serial nbr for checking.

just check my ssd and  ...
dieago 發表於 2011-3-30 22:57

    大哥， 我（Vertex 1 用家）喺用 Win7 64bit 啵！ 唔知會唔會有分別呢？  Vista 問題多多喺人都知道！ 不如你 DL 一隻 OEM Win7 試用一下睇下有冇分別重好啦！

dieago

回復 64# Midas

dont want to spend $ on w7, as run vista not more than 2 yrs...

i think the point is not the windows, is the ssd, when i use vertex 1, no such problem

computer1975

Everyone knows NTFS is not that suitable with SSD as other FS like exFAT.

Niel 發表於 2011-3-30 12:08

exFAT do not support OS boot drive
may be lack of journaling

computer1975

As aforementioned, SSD adds a level of abstraction between the OS's file system and SSD's physical media, the OS has NO WAY to trace the exact location (address) of empty (or recycled) block and data location (Unless you have access to engineering tools).

As a result, the file system will not be and does not need to be understood by the SSD controller. So it is not the Windows (OS) who spent more time to search for empty space, but the SSD controller itself.
Niel 發表於 2011-3-30 12:08

If you said SSD controller to be very intelligent, SSD is no need to co-operative with OS. Why a lot of Ching to do flash Alignment! I don't think today to SSD controller still can not handle them (include low free space of filesystem) perfectly so that why I recommend user to leave enough free space to keep SSD healthy.

I think I not tell to you but for another ching. I usually monitor disk fragmentation by analysis of Diskeeper without Inteli-write and Invisible task.  In enough free space, copy file from Drive D to Drive C. NTFS is very smart to avoid file fragmentation. But at low free space situtation, file fragmentation will be happened very easily.

Niel

If you said SSD controller to be very intelligent, SSD is no need to co-operative with OS. Why a l ...
computer1975 發表於 2011-4-1 09:40 PM

我第一個reply就講左Keep Free Space係有助maintain performance

However, keeping a certain amount of free space does help to maintain the performance of the SSD.

Free space下跌，速度同樣下跌同file system完全無關係，你要製造一隻有極高random write speed，而且在近全滿情況下不降速的SSD，唯一方法是加大over provisioning，而且controller block recycling要極快，同File System完全無關係。

你連基本concept都分不清楚，仲要誤導其他人SSD要defrag/prevent fragmentation，真係救命。之前我同你已經討論過:

http://www.hkepc.com/forum/viewt ... 0%E9%87%8D%E7%B5%84
   
NTFS is very smart to avoid file fragmentation. << 你無講錯，NTFS能防止HDD上的fragmentation，唔係SSD。SSD係喜歡製造fragmentation，不過如果fragment太細controller會自動作combination，整個過程File system都係不知情。

我重申一次，亦請各位網友留意，SSD是不需要重組的。

Niel

exFAT do not support OS boot drive
may be lack of journaling
computer1975 發表於 2011-4-1 09:28 PM

我之前係寫exFAT比NTFS更適合Flash Device，我沒有指exFAT可以boot機，最少現時未有OS support。

exFAT 唔 support boot drive係OS問題，唔係設計上問題。

FAT, FAT32都無journaling，咁大家用Windows 95/98/ME果時點開機?...

你去讀下基本concept先啦。

computer1975

FAT, FAT32都無journaling，咁大家用Windows 95/98/ME果時點開機?...
Niel 發表於 2011-4-1 22:02

Linux - ext3, jfs, XFS
BeOS - BeFS

以上全部都有journaling

你去讀下基本concept先啦

無必要啦睇太多，ext2, jfs, ufs, ufs2, XFS, NTFS ... etc 好多filesystem whitepaper ＆ spec都睇過

Niel

Linux - ext3, jfs, XFS
BeOS - BeFS

以上全部都有journaling



無必要啦睇太多，ext2, jfs, ufs, ufs2 ...
computer1975 發表於 2011-4-1 10:48 PM

睇多咁多都仲錯...

exFAT do not support OS boot drive
may be lack of journaling

...