fakeman

呢度有兩個問題
第一係佢將部份 port 強制 SATA I mode 運行但廣告指全部 SATA II/III，呢度不實，我覺得佢點都要受靶架喇

至於開放返 SATA II mode 後唔夠快既問題（因為 chipset 太雞），spec 果個 bandwidth 不嬲都係話果個係理論最高速，另外 SATA II 有 NCQ 等新指令如果佢做得足既話，要宣稱產品係 SATA II compatible 真係吹唔脹

其實道理就好似街買既 PCI-E x1 SATA expansion card 咁，佢粒 chip 真係食到相關 command，但只係行得唔夠快無得鬧，否則就唔會有 d SATA card 咁平有 d 咁貴啦。但當然咁貴一件產品居然仲用咁低檔既配搭真係有少少令人覺得滴汗

炎冬

回覆  炎冬

原裝牛是7.5A
轉頭又話部機是行8.33A
哈哈哈，姐係一開波偷工減料，比隻7.5A你 ...
空中巴士 發表於 2016-8-25 19:27

    買果時隻牛是7.5A, 部412+後面將貼紙是寫要8.33A, 我是用家, 我唔會..買返來對清楚兩邊個spec是一致先走去插電著機, "腦補中--- 其實用得7-8A電, 差個1A半A, 我就唔信會唔夠電~~"

wa124

回覆 143# 無奈

叫佢教下你冇File System點用囉

上面講笑姐
首先，同佢拎測試方法
然後，如果直接寫入HDD vs 寫入HDD上面個File System有分別的話，代表系統優化好有問題

qazwsx741

DX510, DX213, DX513規格問題
DX213的PDF文件
https://global.download.synology.com/download/Document/DataSheet/ExpansionUnit/13-year/DX513/Synology_DX513v3_Data_Sheet_enu.pdf

DX213的PDF文件
https://global.download.synology.com/download/Document/DataSheet/ExpansionUnit/13-year/DX213/Synology_DX213_Data_Sheet_enu.pdf

DX510的PDF文件
https://global.download.synology.com/download/Document/DataSheet/ExpansionUnit/10-year/DX510/Synology_DX510_Data_Sheet_enu.pdf

文件清楚指出，連接速度為3.0Gb/ sec，但Synology未曾公布有部分型號會被限制至1.5Gb/ sec （見#2）

The Synology DX513 is connected to the Synology DiskStation using an expansion cable with custom-designed connectors on both ends, ensuring a reliable connection and maximum throughput. The 3.0 Gb/sec connection speed allows the hard drives in the connected Synology DX513 to operate as the internal ones of Synology DiskStation.

The Synology DX213 is connected to the Synology DiskStation using
an expansion cable with custom-designed connectors on both ends, ensuring a reliable connection and maximum throughput. The 3.0 Gb/ sec connection speed allows the hard drives in the connected Synology DX213 to operate as the internal ones of Synology DiskStation.

The Synology DX510 is connected to the Synology DiskStation using an eSATA cable with custom-designed connectors on both ends, ensuring a reliable connection and maximum throughput. The eSATA 3.0 Gb/sec de nition allows the hard drives in the connected Synology DX510 to operate as they are the internal ones of the Synology DiskStation.

qazwsx741

從Source Code發現的受影響型號（SATA限速1.5Gbps）
- DX510

1. /*
   
2. * DX510 has {ICRC, ABRT} problem under heavy loading IO,
   
3. * force 1.5Gbps can avoid this problem.
   
4. */

複製代碼

- DX513 配DS412+, DS112, DS112+, DS213+, DS413, DS212+

1. /*For DS412+, qoriq, 6282 with DX513, the link should be limited to 1.5G*/

複製代碼

- DX213 配DS412+, DS213+, DS212+, DS413

1. /*For DS412+, qoriq, DS212+ with DX213, the link should be limited to 1.5G*/

複製代碼

- DS1815+

1. // We limit DS1815+ internal SiI3132 port to 1.5Gbps to avoid ata error

複製代碼

Source: https://github.com/evolver56k/xpenology/blob/55feab45d18564add1af4230f3d8e2436754f6e0/drivers/ata/libata-core.c#L2416

qazwsx741

回覆 142# 炎冬

可以拍照看看嗎？

空中巴士

班友推卸責任 可以點樣駁佢
無奈 發表於 2016-8-27 08:34

哈哈，而家學人玩語言偽術
一方面話人測試方法有問題，又唔講自己點測試？你唔講人地點試？
又要話速度達標，咁個標準係咩阿？速度係幾多阿？
真係冇問題，當初又提出換機方案比第一位事主？

仲未同佢計，樓主岩岩爆出黎，DX系列集體限速
情況同DS1815+一樣，偷偷地改，改完唔同人講
仲話自己標示的規格沒有錯誤或假造
笑死人，真係有誠信，良心企業

空中巴士

買果時隻牛是7.5A, 部412+後面將貼紙是寫要8.33A, 我是用家, 我唔會..買返來對清楚兩邊個spec是一致 ...
炎冬 發表於 2016-8-26 15:34

哈，差1A半A，用耐左咪唔夠力囉
乜2隻火牛成本差好遠咩，咁都要偷雞

空中巴士

回覆  無奈

叫佢教下你冇File System點用囉

上面講笑姐
首先，同佢拎測試方法
然後，如果直接寫入HD ...
wa124 發表於 2016-8-27 14:27

同意
用果時都要經File System，點解唔可以係File System上面測試？
再講，而家問題係第7，第8隻特別慢
唔好同人講咩野速度達標，大家都係SATA2，速度唔一致已經有問題
老老實實，如果同人講明有依個問題，我肯定隻野冇人買!!