HDDS

美 　英

• 網(wǎng)絡(luò)硬盤驅(qū)動器；硬碟；Hitachi Data Discovery Suite

例句

A mirror angle measurement and a servo control apparatus for a Holographic Digital Data Storage (HDDS) system is disclosed.

公開了一種用于全息數(shù)字數(shù)據(jù)存儲（HDDS）系統(tǒng)的反射鏡角度測量和伺服控制裝置。

Chrome OS netbooks do not have HDDs but instead they use flash based memory solutions or solid state drives (SSD) for that.

ChromeOS上網(wǎng)本并沒有硬盤驅(qū)動器（HDD），而是采用了基于閃存的內(nèi)存解決方案或是固態(tài)硬盤（SSD）。

And while the capacity of HDDs has grown exponentially, the speed of these devices has not significantly increased.

而當(dāng)HDD的容量指數(shù)級增加時，這些驅(qū)動器的速度并沒有實現(xiàn)顯著增長。

One of the databases had its data stored on EFDs; the other had its data stored on similarly configured FC HDDs.

其中一個數(shù)據(jù)庫將數(shù)據(jù)存儲在EFD中；另一個將數(shù)據(jù)存儲在有相似配置的FCHDD上。

And this type situation has only worsened as the density and capacity of HDDs have increased.

而且這種狀況只會隨著HDD密度和容量的增加而變得更壞。

Therefore, seek time continues to be the largest source of latency in HDDs.

因此，尋道時間一直是HDD的延遲時間的最主要來源。

As shown in Figure 3, monitoring showed 100% utilization on the FC HDDs and DA processors.

如圖3所示，監(jiān)控顯示FCHDD和DA處理器的使用率為100%。

Because EFDs have no moving parts, they are not constrained by seek time or rotational latency in the way that FC and SATA HDDs are.

因為EFD沒有移動的部件，所以它們不會像FC和SATAHDD那樣受到尋道時間或旋轉(zhuǎn)延遲時間的約束。

But although SSD costs are declining every quarter, SSDs are still more expensive than HDDs.

但是，雖然SSD的成本每個季度都在遞減，但是SSD仍然比HDD昂貴。

SSDs can perform operations concurrently; HDDs cannot.

SSD可以并發(fā)執(zhí)行操作；而HDD不可以。

Fibre Channel HDDs have been the backbone of enterprise storage arrays for many years.

FibreChannelHDD作為企業(yè)存儲陣列主干已經(jīng)多年了。

The type of CPU used, IOPS needed, and throughput desired are the factors that determine exactly how many HDDs are required.

使用的CPU類型、所需要的IOPS和預(yù)期吞吐量是準(zhǔn)確確定所需要的HDD數(shù)量的因數(shù)。

As a result, a significant amount of space on HDDs (greater than 50% in many cases) is never used or under-utilized.

結(jié)果，HDD上有大量的空間（大多數(shù)情況下大于50%）是從不使用或很少使用的。

But SSDs are different from hard disk drives (HDDs) in that they are consumable.

但是SSD不同于硬盤驅(qū)動器（HardDiskDrive，HDD），因為它們是可以消耗掉的。

Within five years HDD storage capacities had increased 1, 000-fold, the rapidest advance in the half-century-long history of HDDs.

隨后五年內(nèi)，硬碟儲存容量增加了1000倍，是長達(dá)半世紀(jì)的硬碟史上進(jìn)步最快的時期。

HDDs use very strong Neodymium magnets.

硬盤驅(qū)動器使用非常強(qiáng)大的釹磁鐵。

And the wait time is considerably longer for HDDs than for EFDs due to the mechanical delays that are inherent to HDDs.

而且，由于HDD內(nèi)在的機(jī)械延遲時間，這個等待時間在HDD上會比EFD長得多。

Heads flying height on modern HDDs is about 5-10 nanometers.

飛行團(tuán)長對現(xiàn)代硬盤高度約5-10納米。

Dynamics Improvement of the Head Actuator Assembly in HDDs with Tuned Damper

調(diào)諧質(zhì)量阻尼器用于改善硬盤驅(qū)動器讀寫頭動臂的動力特性

Design of a Fast and Precise Head Positioning Servo Control System for HDDS

硬盤磁頭快速精確定位伺服控制系統(tǒng)的設(shè)計

When used in OLTP environments, EFDs offer the following benefits over traditional HDDs

在OLTP環(huán)境中，使用EFD比傳統(tǒng)的HDD有以下方面的優(yōu)點