posted by wap, platform: Nokia (E71)

100楼了

HP ProLiant MicroServer

能用不同容量的硬盘, 灵活插入, 灵活组建确实是个巨大的优势

What's BeyondRAID? Storage without limitations.




BeyondRAID technology, built into every Drobo, delivers all of the benefits of traditional RAID, while providing much more and leaving many of the limitations behind. This next-generation of redundant storage technology brings together enhanced protection, reliability, expandability, and ease-of-use.

Drobos, based on BeyondRAID, interact with computing systems in the same manner as storage arrays using traditional RAID, so installing a Drobo allows you to maintain your current operating system and file system. This eliminates the challenges and costs when moving to a new storage technology.

Problems with Traditional RAID
RAID Redefined RAID (Redundant Array of Inexpensive Disks) was developed in the 1980s to pool disk drives for increased capacity and reliability for data storage. Since then, RAID has been a huge success, preventing single disk drive failures from causing data loss, and has been used in almost every enterprise data center.

Unfortunately, the complexity of RAID has made it challenging for small businesses and consumers to effectively use the technology. RAID has a high learning curve with many options. There's RAID levels 0, 1, 5, 6, 10, 50, and 60 along with unfamiliar terminology like striping, mirroring, and parity.

Aside from complexity, these are the primary challenges with traditional RAID:

Lock-in of RAID levels. To change RAID levels, most storage arrays require the data to be moved off of it, reconfigured, and then moved back on. If you want to move to RAID 6 from RAID 5 for protection against two drive failures, it's a reinitialize and start over.
Lack of expandability. Once drives are configured into a RAID pool, that is it. If you want to add more storage capacity, the solution is to create a new RAID pool, leaving you with another chunk of storage to manage - or you can just reinitialize and start over.
Debilitated state after a drive failure. When a drive fails, most RAID implementations enter a state where data loss will occur if another drive falters before the user replaces the failed drive. Also, performance is hampered when in this debilitated state.

Moving Beyond RAID
Drobo's BeyondRAID technology solves these fundamental issues with traditional RAID while delivering much more. Built on an advanced virtualization platform, BeyondRAID chooses the correct protection algorithm based on data availability needs at any given moment.Since the technology works at the block level, it can write blocks of data that alternate between data protection approaches.

If you need to add storage capacity to a Drobo, simply insert additional disk drives or replace the smallest disks with larger ones - no need to change RAID levels, purchase a new storage array or go through the complex administration of pooling RAID groups. The BeyondRAID feature even allows IT managers to switch from single to dual disk redundancy with a single click, thereby ensuring enterprise-level dual parity data protection if required. If a drive happens to fail, Drobo will automatically re-layout the data to return to a protected state without any user interaction.

See how BeyondRAID works in action.

BeyondRAID vs. Traditional RAID
BeyondRAID Comparison Chart

Thin Provisioning is a fundamental capability of BeyondRAID, allowing for infinite capacity expansion by just replacing a drive with a larger one.

Instant Expansion occurs when a new, or larger, drive is inserted without any disruption in service.

Drobo's volumes are Smart Volumes, pulling needed storage from a common pool and then returning deleted blocks back to the common pool, preventing free space from being tied up by any particular server.

Mixed Drive Utilization allows you to insert any drive, of any size, or any type, and Drobo will optimally use it - check out our interactive Capacity Calculator.

Automatic Protection Levels ensures the best algorithm is used to protect from drive failure depending on the number of drives that are inserted, without any user configuration. There is no need to learn about RAID levels or what mirroring or striping is.

Dual Disk Redundancy enhances BeyondRAID protection by guarding from multiple drive failures in a short period of time. Even if two drives fail, BeyondRAID will attempt to use the remaining drives to return to a protected state.

Virtual Hot Spare utilizes all drives at all time with no drives sitting idle waiting for one to fail. With some traditional RAID systems, a drive can be marked as a "hot spare", waiting on standby for a drive failure so it can take over. That's just a unutilized drive that you have to pay for taking up a valuable drive bay.

Drobos are Data Aware, intelligently handling data for added resiliency, performance, and management. Being Data Aware allows the Drobo to have a capacity gauge on the front, quickly recover in the event of a drive failure, enable intelligent tiering of data, and much more.

Drive Re-ordering allows Drobo disk packs to be moved to another Drobo, and even re-ordered, while still functioning - try that with RAID.

Not true 哦

From DLINK DNS343 support page

How do I restore RAID1 or RAID5 on my DNS-343 Series ShareCenter if a drive has failed?
A Note: If a drive has failed, the DNS-343 Series ShareCenter LED will display the corresponding drive as missing and you will receive an email from the DNS-343 stating a drive has failed if this option has been configured

If this happens, follow these steps to restore the RAID1 or RAID5 settings:

Step 1: Power down the ShareCenter

Step 2: Remove the failed drive from the ShareCenter

Step 3: Insert the new drive into the ShareCenter

Note: The new drive Should be blank with no partition on the drive The drive may still be detected and prompt to format if formatted incorrectly

Step 4: Power on the ShareCenter

Step 5: After a minute log into the ShareCenter web interface

Step 6: You will be prompt to format and re-sync on entry, click OK

Note: Formatting a hard drive will erase the data stored on the hard drive. Please backup important data before formatting a hard drive

Note: This action will format the replaced drive only and sync remaining RAID drives

Step 7: The ShareCenter is now ready for use. You can continue to use your ShareCenter while your newly inserted harddrive is being synced.

posted by wap, platform: Firefox

搜了下，发现这个连热插拔都不支持:呆猴:

热插拔对个人用户意义不大. 关一下机也没啥的.关键还是要便宜
企业的话不能中断磁盘服务, 大概必须要有.

[ 本帖最后由 猫猫猫 于 2011-5-8 11:02 编辑 ]

这东西很神啊，不过太高端了。:企鹅结冰: :企鹅结冰: :企鹅结冰:

这个一定要mark

楼主试过FTP/文件拷贝
秒速能有多少MByte吗?

3000左右。。。

试过，千兆网络，拷贝的话稳定在65MB/S左右，峰值115MB/S

如果从esata换到USB3.0的话，只有杯具的30MB/S，不知道是不是电脑上的USB3.0芯片太差

posted by wap, platform: iPhone

@总统先生 mark

哦 我的问题问错了, 忘记了你这台是不带网络功能的.

自己查了一下Drobo网络型的, 速度可能是2X MB/s
(这台机器的CPU和内存都比DLINK那台要强)

mark
`````````````````

这个帖子要好好学习下~~~

适合公司
私人看数据了

7100，瞬间缩了，楼主有爱，楼主实力。

七千元我就缩了

太高端了。。

没用的东西

3000以内买一个:猴子喷火:

mark一下:呆猴: :呆猴:

价格够牛逼的

看amazon评论
仔细想想可怕极了

太高端了 卢瑟还是老老实实用多硬盘raid1算了

适合做数据的人士

posted by wap, platform: Nokia (E72)

@多余的云 mark

马克一下~~~

:企鹅抽筋蹬腿: 确实好东西啊,不过价格...等有钱了败一个...

posted by wap, platform: Nokia (E71)

火星科技值这个价

估计内置了几块硬盘吧.

数据第一的可以拜:企鹅结冰:

为毛看了就想买捏，明明满硬盘的数据还不值那7K呢。:绿脸贱笑:兔打哈欠:

posted by wap, platform: iPhone

对了楼主，3000多哪款比这个7100的差在哪儿？网络？还是硬盘位？

posted by wap, platform: iPhone

看到价格时瞬间就解毒