Niel

回復  Niel

師兄非常詳細的數據，

隻SSD幾好用下!
用小小$得到開心係非常值得!

依家想說 ...
big_nature 發表於 2011-3-29 03:33 PM

一日50GB係好heavy usage，office work通常都係5GB per day，你可以自己monitor下

big_nature

回復 32# Niel

唔係好識睇個Intel toolbox資料!
只係做過Check W/R  passed果項

師兄對SSD真係expert!

Niel

回復  Niel

唔係好識睇個Intel toolbox資料!
只係做過Check W/R  passed果項

師兄對SSD真係exp ...
big_nature 發表於 2011-3-29 03:54 PM

多謝贊賞


將Host Writes除Power-On Hours court，就可以估計average

big_nature

回復 34# Niel

明白晒啦師兄!
呢個test我都有做過，但以前不明所以!

如果我個120G 鎅左80G 同40G
(當然唔足數啦)
同唔鎅的話，壽命有冇差異?
技術研究而已!

Niel

回復  Niel

明白晒啦師兄!
呢個test我都有做過，但以前不明所以!

如果我個120G 鎅左80G 同40G
...
big_nature 發表於 2011-3-29 04:34 PM

除左個file system多左個Master File Table，多左少少overhead之外，我諗唔到有會對壽命有大影響。

big_nature

回復 36# Niel
如果個SSD用到5年，
我非常滿意了!
因為到時的儲存技術唔知發展到邊個地步!

Niel

回復  Niel
如果個SSD用到5年，
我非常滿意了!
因為到時的儲存技術唔知發展到邊個地步!
...
big_nature 發表於 2011-3-29 04:49 PM

無錯，SSD差不多1.5年快近一倍，5年後我諗大家都可能買新了

Midas

其實Vertex 2 60GB降速主要係channel問題，唔係3Xnm > 2Xnm問題。

Bootup, restart重視random performan ...
Niel 發表於 2011-3-29 14:38

   多謝 Niel 師兄提點， 咁我都喺睇定啲先啦！ 橫掂都唔急！ 對我隻 Vertex 30G 都好滿意！

computer1975

回復  Niel

明白晒啦師兄!
呢個test我都有做過，但以前不明所以!

如果我個120G 鎅左80G 同40G
...
big_nature 發表於 2011-3-29 16:34

keep more than 20% free space otherwise window will spend more time to search empty space to write a new data and data a less likely to write sequential to lower read speed

Niel

keep more than 20% free space otherwise window will spend more time to search empty space to write ...
computer1975 發表於 2011-3-29 07:25 PM

wrong....

As 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.

The block handling behavior is entirely done by the SSD controller (not the OS or the file system).

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