blocks|key|4181331|text|上周末，我收到了几个sysadmin伙伴的回复。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4181332|似乎最好的做法是将所有计算机备份到一个中央大磁盘，然后将该磁盘备份到磁带上，然后将磁带发送到异地(所有设备都使用了Iron+Mountain)。|4181333|磁带容量为400-800G，每盘磁带的成本为30-80美元。一台换带机似乎要卖到一万美元。|4181334|不确定异地运费是多少。|4181335|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Over the weekend, I've heard back from a couple of my sysadmin buddies.

It seems the best practice is to backup all machines to a central large disk, then back that disk up to tape, then send the tapes off site (all have used Iron Mountain).

Tapes hold 400-800G and cost $30-$80 per tape.
A tape changer seems to go for $10k on up.

Not sure how much the off-site shipping costs.

blocks|key|117645|text|一种值得考虑的异地备份常见解决方案是在现场执行备份，然后通过安全的蜗牛邮件或为此目的而设计的服务将备份物理传输到其他地方。如果带宽是个问题，这可能更实用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|117646|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

One common solution to offsite backups that is worth considering is performing the backup onsite and then physically transporting the backup elsewhere, either via secure snail mail or with a service designed for that purpose. If bandwidth is an issue, this may be more practical.

blocks|key|4181179|text|我使用的是硬盘，而不是磁带，我每周都会更换硬盘。它比磁带设备便宜，而且在必要时更容易插入另一个系统。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4181180|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Instead of tapes, I use hard drives that I physically swap out every week. It is less expensive than tape equipment, and easier to plug into another system when necessary.

blocks|key|3335628|text|回到80年代末，我在一个地方工作，我们每周都会收到一盒各种各样的磁带--我们会对盒子上的磁带进行每周一次的备份，然后把它们送到异地。显然，他们有两个这样的盒子，一个在我们的办公室里，另一个被锁在某个地方。然后我们得到了一个Exabyte驱动器，它的单个磁带容量比TK-50、QIC-40和mag磁带的整箱容量都大，而且每周与一位经理一起发送一盘磁带回家会更简单。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3335629|我相信仍然有这样的异地备份系统，但我发现从家里的系统到我工作的办公桌上循环几个500+my的驱动器会更容易一些。|3335630|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Back in the late 80s I worked at a place where every week we received a box of tapes of various sorts every monday - we would do one set of weekly backups on the tapes on that box and send them off-site. Evidently they had two of these boxes, one that was in our office and the other they kept locked up somewhere. Then we got an Exabyte drive which had a single tape capacity greater than that whole box of TK-50s, QIC-40s and mag tapes, and it was just simpler to send a single tape home with one of the manager every week.

I'm sure there are still off-site backup systems like that, but I find it easier to keep cycling a couple of 500Gb drives from my home system to my desk at work.

blocks|key|921081|text|为什么不加密它，并实际上传到第三方供应商？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|921082|我正在考虑这样做，我的数据在家里，但还没有找到一个供应商，只会让我做一个dump...They都想安装客户端应用程序…|921083|诚然，我并没有那么认真地看过……|921084|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Why not encrpyt it and actually upload to a third party vendor?

I am thinking of doing this with my data at home but have not found a vendor that will just let me do a dump...They all want to install client side apps...

Admittedly, I have not looked that hard...

blocks|key|4181253|text|我们使用了几种解决方案。我们有另一家公司的异地备份。我们还使用几个便携式硬盘驱动器，并每天更换它们。这两种解决方案都不能真正处理数of的数据。更像是千兆字节。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4181254|然而，在未来，我们可能会考虑使用磁带路由器，或者其他类似的永久和可存储的东西。兆兆字节的数据太多了，无法通过网络传输。当蓝光光盘的价格变得合理并且在商业上可行时，研究一下不久前被吹捧的400+ago的光盘可能是一个好主意。这些将是非常友好的存储(在物理意义和文件大小意义上)，并根据寿命统计数据，可能会保留一段时间，类似于磁带。|4181255|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

We use a couple of solutions. We have an offsite backup with another company that we do. We also use several portable hard drives and swap them out each day. Neither solution really handles multiple terabytes of data. More like gigabytes.

In the future, however, we will probably be looking at going the tape router, or something else that is similarly permanent and storable. Terabytes of data is too much to transfer over the wire. When bluray discs become reasonably priced and commercially viable, it may be a good idea to look into the 400GB discs that were touted not long ago. Those would be extremely storage friendly (both in the physical sense and the file size sense), and depending on the longevity stats, may keep for a while, similar to tapes.

blocks|key|117861|text|我建议使用EMC等公司的本地san，该公司向远程设备提供基于压缩快照的复制。这是一个昂贵的解决方案，但它是有效的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|117862|http://www.emc.com/products/family/emc-centera-family.htm|offset|length|117863|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1L|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

I would recommend using a local san from a company like EMC that provides compressed snapshot based replication to remote facilities. It's an expensive solution, but it works. 

<a href="http://www.emc.com/products/family/emc-centera-family.htm" rel="nofollow noreferrer">http://www.emc.com/products/family/emc-centera-family.htm</a>

blocks|key|925642|text|我害怕录像带。我认为它给人一种数据安全的错误感觉。根据我自己在数百盘磁带上备份数十to数据的经验，我们发现几年后数据恢复率下降到了70%25左右。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|925643|公平地说，这是一项现在已经停止的技术(AIT)，但它几乎让我对磁带望而却步，除非它位于1英寸的卷轴上，而且价格高得令人放心。|925644|如今，多个硬盘，多个位置，是的，退回到亚马逊S3或其他云提供商没有什么坏处(除了有点贵)。|925645|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I'm scared of tape. I think it gives a false sense of data security. In my own experience from backing up dozens of terrabytes across hundreds of tapes, we discovered that the data recovery rate after a few years fell to about 70%.

To be fair, that was with a now discontinued technology (AIT), but it pretty much put me off tape for life unless it sits on a 1" spool and is reassuringly expensive.

These days, multiple hard drives, multiple locations, and yes, a fall back into Amazon S3 or other cloud provider does no harm (apart from being a tad expensive).

I have terabytes of files and database dumps that I need to backup off-site.

What's the best way to accomplish this?

I'm currently weighing rsyinc to Amazon EBS or getting an appliance (eg barracuda).

I called a buddy of mine, and he said he uses backula to get all the files on a single disk, then backs that disk up to tape, then sends the tapes off to iron mountain.

Still waiting to hear back from other sysadmins I've contacted. Will post results here.

How do you handle off-site backups of terabytes of data?

翻译质量差，导致语言生硬或混乱。

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解答不清晰，无法理解或解决问题。

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我有数to的文件和数据库转储需要进行异地备份。实现这一目标的最佳方法是什么？我目前正在权衡rsyinc到亚马逊EBS或获得一个家电(例如梭鱼)。我打电话给我的一个朋友，他说他用backula把所有的文件放在一张磁盘上，然后把那张磁盘备份到磁带上，然后把磁带送到铁山。还在等待我联系的其他系统管理员的回复。将在此处发布结果。

问您如何处理of级数据的异地备份？
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