Tapes are used by a tape backup machine.

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48
votes
8answers
2k views

What are the advantages of tape drives?

IBM still develop and sell tape drives today. The capacity of them seems to be on a par with today's hard drives, but the search time and transfer rate are both significantly lower than that of hard ...
17
votes
7answers
744 views

Is there still a place for tape storage?

We've backed up our data on LTO tapes for years and it's a real comfort to know we have everything on tape. A sister project and one of our data providers have both moved to 100% disk storage because ...
15
votes
3answers
2k views

Tape encryption management & best practices

I want to enable encryption on all of my backup tapes. I more-or-less know how to do this technically, but the procedural and human elements of implementing this are tricky. I use HP LTO4 drives ...
14
votes
2answers
6k views

Are RDX removable disks a good replacement for LTO tape?

Over a period of three weeks, I experienced six complete failures of LTO-1 and LTO-2 tape drives at client sites. Some had failed mechanisms. Others lost the ability to write reliably. These were HP ...
11
votes
4answers
11k views

If LTO-3 full backup takes more than one tape. What is my next step hardware wise?

OK. some givens to factor in I use Backup Exec 12.x/13.x, Have server 2003/2008 environment including Exchange. I have Backup to Disk (Full/Diff) happening that is independent of the backup to LTO ...
11
votes
2answers
1k views

How do you monitor the performance of a character device (e.g. tape drive)?

There are many ways to monitor block device performance: dstat and iostat, heck, even sar will give you data on block device I/O rates. Unfortunately, I don't know of any good spur-of-the-moment ...
8
votes
4answers
329 views

Should static data be backed up every time to tape?

In the Backup and Recovery book, they write it is good practice to make a full backup every month, and then increments or differential back up each week. What if I have 800GB data and ~10GB changes ...
8
votes
6answers
961 views

How do you handle data archiving? [closed]

Backups are one thing, but long term archival is another. For example, you might be required to store emails for 7 years, or keep all project data indefinitely. I used to save archives to tape, but ...
7
votes
4answers
1k views

Tape vs SSDs backups regarding long-term storage reliability

My question is very specifically about solid state drives, not regular hard drives. I would like to put in place a grandfather-father-son backup scheme, with the SSDs being used for the grandfather ...
7
votes
2answers
318 views

What is “deduplication”?

I mean, I can look up the dictionary definition, but why is everyone suddenly talking about it in reference to virtual tape libraries? What's "new" here so that it's so much in the news lately?
7
votes
1answer
1k views

Why is not DPM 2012 treating my tapes as free even if they should be?

I have a DPM 2012 server (but I've heard the same behaviour happens with DPM 2010) I'm using to backup my environment; it's connected to a single tape drive (no library), so tape rotation is manual. ...
7
votes
2answers
2k views

Bacula & Multiple Tape Devices, and so on

Bacula won't make use of 2 tape devices simultaneously. (Search for #-#-# for the TL;DR) A little background, perhaps. In the process of trying to get a decent working backup solution (backing up ...
6
votes
4answers
6k views

Why do companies still use tape drives? [closed]

I found this, but it doesn't really answer my question. Disks even in the 1-2 TB range are much cheaper than tapes, yet I saw that Google uses tape drives for backup. What is their (disks) primary ...
6
votes
4answers
878 views

How many bad tapes are “normal”? [closed]

I use Quantum DLT-S4 tapes (800/1600GB) in my library, which has two Quantum tape heads in it. I have had quite a few bad tapes i.e. tapes that come up "CRC error" or "cannot read tape" etc and the ...
6
votes
1answer
127 views

Off site Secure Tape storage [closed]

I was wondering who uses off site tape storage for their backups and their Positives and Negatives with each system. My basic requirements are secure storage, HIPPA certified, or SAS certified would ...
6
votes
2answers
400 views

Backing up oracle to TAPE

our Oracle database has grown very large as of late ~= 400 - 500 GB and saving to filesystem is not scalable anymore to us. We are looking at using RMAN to backup to tape (directly, not to fs then ...
6
votes
3answers
456 views

Best way to deal with DC600A tapes with deteriorating tension bands?

I have probably ~200 DC600A quarter-inch cartridge backup tapes from the late 80s and early-mid 90s. I have 2 drives that are capable of reading DC600A tapes, but the drives were destroying tapes. ...
6
votes
2answers
520 views

A decent Windows tape backup program to replace NTBackup

I'm running Veeam right now to back up VMs to disk which is great, but I like taking home a tape every night as an offsite backup. Integration with NTBackup is simple, just put a "ntbackup backup [vm ...
5
votes
5answers
302 views

Backup solution (includes tape backup)

What would be the best Linux based solution for backup (later maybe tape backup too). There are Bacula, Amanda, and others. Any suggestions which to learn ? (Now I use compressed tarballs simply)
5
votes
2answers
322 views

tar file modified bit (am I being BS'd to?)

I'm working on a project where I'll be using tar to incrementally backup data on a server to a number of tapes. According to a senior co-worker of mine, tar will "set special flags on files so that ...
5
votes
2answers
193 views

Tape backup size versus file retention time

How we back up We currently have a file server that is backed up to tape. The backups are incremental which means the files that have changed since the last backup get written to tape. Over time the ...
5
votes
2answers
657 views

Do I need to run a verfication on LTO tape backups even though the drives themselves perform verification as they write?

We have an LTO-3 Tape drive in a Dell media library that we use for our tape backups. The article about LTO on Wikipedia states that: LTO uses an automatic verify-after-write technology to ...
5
votes
4answers
4k views

Symantec Backup Exec 12 Tape Alert

Every day, I run 5 backups using 6 tapes. Each day, when I run the inventory, I get a tape alert Error. This occurs every day, on the same job. The error is: Job 'Inventory Daily ********' has ...
4
votes
7answers
687 views

Inexpensive degaussers or HDD shredders?

Apologies, I'll simplify my question: Are there any degaussers or HDD shredders out there in the $500-1500 range designed for use as such that you would recommend for low-volume use?
4
votes
4answers
4k views

writing LTO-3 tapes with a LTO-4 drive

Apparently LTO-4 drives can both read and write LTO-3 tapes. Are these tapes fully compatible with LTO-3 drives? I'm interested in real life experience more than theoretical vendor-touted ...
4
votes
18answers
5k views

How to Eliminate Tape Backup and Off-site Storage Service?

PLEASE READ UPDATE AT THE BOTTOM. THANKS! ;) Environment Info (all Windows): 2 sites 30 servers site #1 (3TB of backup data) 5 servers site #2 (1TB of backup data) MPLS backbone tunnel connecting ...
4
votes
6answers
2k views

How do you physically transport your backup media?

I currently back up to LTO-3 tapes, and I'm about to cross the threshold where a full backup will not fit on a single tape any more; the weekly and monthly backups will span two tapes. Well, I ...
4
votes
5answers
550 views

what are you using to store your LTO3 tapes?

I have about 50-75 LTO3 tapes stacked in my server room. Does anyone have any creative solutions on how to properly store them so they're easily accessed? All the LTO3 cabinets I see are thousands of ...
4
votes
4answers
412 views

Ultrium 3 tape drive shoe-shining, 3Mb/s: and it's not the cable

I have a HP 960 Ultrium 3 tape drive. Since I got it, (second hand, £90) I've been experiencing shoe-shining. Writing with tar in Linux, I average about 3Mb/s write speed. I've tried replacing both ...
4
votes
5answers
1k views

Choosing the right backup solution - SCSI vs SATA tape drives

I'm backing up about 100gb worth of data on backup exec and after much deliberation, have decided that tapes are worth another shot (after my ultrium decided to die and munch tapes). Bearing in mind ...
4
votes
1answer
720 views

Backup to tape on server 2012

It seems that Windows Backup Server on 2012 does not backup to tape, only to block storage devices. Anyone know if there is a way of backing up to tape on server 2012, just like the old ntbackup used ...
4
votes
1answer
268 views

Is it possible to pass through a IDE tape drive to a virtual machine?

My department does conversions for people who bought our software to get their data out of their old system and in to our system. Often they will be running odd or archaic systems that the only way to ...
4
votes
5answers
966 views

Network tape restore is faster than disk to disk copy

How can this be? Running a cp or rsync (with -W --inplace) takes two hours for 93Gb; a tape restore over the dedicated backup network is 41 minutes. Tape restore is 50 Mb/s; disk to disk was ...
4
votes
1answer
1k views

Acceptable level of hard write errors on tape?

What is an acceptable level of hard write errors on tape? Specifically, what is acceptable on HP LTO-2 media? Is it a hard number of errors, a ratio of hours in use to errors, or something else ...
4
votes
1answer
200 views

tape changers on Centos 6 enter flurry of activity upon boot, at udev start

I have two tape-changer robots (Quantum Superloader 3), one with parallel SCSI connectivity, the other with SAS. They were connected to a Centos 5 server, and boot would proceed normally. They are ...
3
votes
5answers
2k views

Recommendations for backup (tape vs. HDD)

We're a relatively small organization (25 users, 9 servers, everything Windows-based) and we've been using tape backup since the beginning; currently we're using Backup Exec to perform the backup. ...
3
votes
2answers
191 views

Internal LTO tape drive becomes hot

We use an internal LTO3 tape drive (HP Ultrium 920) in a PC (no particular server hardware) running Linux. The tape drive becomes quite hot - I don't have the exact temperature, but you may touch it ...
3
votes
7answers
1k views

archiving on tape under Linux

I have a server with 8TB data, and a tape with high numbered 400GB tape cartridges. What would be the best solution to backup this server with the least effort ? I think after one full backup, I can ...
3
votes
5answers
4k views

Slow LTO4 tape drive

EDIT UPDATE: for others seeing this thread. For me the issue was the scsi card itself for some reason. I replaced the Adaptec with an LSI and it works great now Regardless of if I'm backing up the ...
3
votes
2answers
3k views

Tape Storage - How do I setup a tape backup system for use with my NAS

I currently have a QNAP NAS with a raid 5 config (~600gb storage) but don't have a reliable backup solution. I've heard great things about tape backup systems (reliability, durability, etc..). How ...
3
votes
2answers
337 views

LTO 2 tape performance in LTO 3 drive

I have a pile of LTO 2 tapes, and both an LTO 2 drive (HP Ultrium 460e), and an autoloader with an LTO 3 drive in (Tandberg T24 autoloader, with a HP drive). Performance of the LTO 2 tapes in the LTO ...
3
votes
4answers
4k views

How to list the files on a tape with tar?

On a HP-UX OS I have a backup on a magnetic tape created from the SAM. Everywhere I read the instructions to list-verify the contents of the tape is to use the TAR program: #tar tvf ...
3
votes
1answer
620 views

LTO-3 restore from backup when backup software is unknown

I was recently asked to restore the backups of some HP Ultrium LTO-3 tapes to a portable HDD, the company that owned the tapes liquidized and the old CEO wanted the backups in a form they could read ...
3
votes
2answers
720 views

Hybrid fileserver and removable storage backup NAS

I need some hardware to support additional file server space (Preferably 1TB+), as well as a backup solution that will let me pull drives or tapes periodically to store off-site. Can I do this easily ...
3
votes
1answer
517 views

Does tarring up small files into one big tar file before writing them to tape increase the level of data loss when an error occurs?

I've been looking at our backups recently and noticed that the tape throughput is a lot lower when writing lots of small files, so was thinking of tarring those small files up into one big tar file ...
3
votes
2answers
237 views

Correct backup settings for overflow tape in Backup Exec

We have a situation where our backups sometimes don't quite fit on one tape, and there's no budget for a bigger drive. What we do have is two separate tape drives, so we've hooked them both up to the ...
3
votes
3answers
1k views

Linux tape drive throughput performance statistics

Does anyone know a way, (other than using SystemTap + iostat-scsi.stp script), to get Tape Drive performance statistics? Server: Red Hat Enterprise Linux Server release 5.7 (Tikanga) Kernel ...
3
votes
1answer
2k views

Backup ZFS snapshots to tape (both full and diff)

What would be the best way to implement an LTO tape-based backup system on a ZFS fileserver? I've got about 6TB that need to be backed up on a daily basis, along with an existing HP 1840 LTO4 tape ...
3
votes
1answer
742 views

Disk-to-tape using Networker and Data Domain

My previous question covered disk-to-disk backup to reduce our backup window, and now I also need to take the disk backup and move it to tape. Is this something I can do with Networker and ...
3
votes
2answers
153 views

Is it useful check data integrity in one DAT tape?

I backup my data every day on tape using one drive DAT HP Storageworks DAT 160. I use one tape for every day and I turn them weekly. Every monday I check one tape randomly recover some files saved on ...