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Questions tagged [lto]

For questions regarding LTO (Linear Tape-Open) memory storage technology and its applications.

18 questions
5
votes
1 answer

How to check available storage on an LTO 4 tape?

How can I tell the amount of storage used and available on an LTO 4 tape? I have a printout from the tape that shows blocks and the file length of each library.
DLM_SAVA
  • 101
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4
votes
1 answer

How to read an dar archive via LTO-6 tape

The /data folder was saved on tape with dar -R /data/ -c - | mbuffer -R 110M -P 90 -m 1G | dd of=/dev/nst0 bs=256k How can I test, list and extract it? I tried the following to test the archive without luck: # mt -f /dev/nst0 status SCSI 2 tape…
Jonas Stein
  • 1,182
3
votes
1 answer

What do I need to connect an LTO 6 Ultrium Internal Drive to a PC?

I bought an internal IBM LTO 6-H SAS Tape Drive to back up my data (I have many TBs). I don't have a server, only a Windows 10 and Windows 7 PC. Which wires/card/adapters/enclosures do I need so it can run via SATA or USB or even PCI-E or some port…
Jason
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3
votes
2 answers

LTO-6 with Hardware Encryption Enabled using LTFS File System Possible on HP Ultrium?

I've googled this issue, but can't seem to find an answer to point me in the right direction - or if this simply is not possible. My HP Ultrium LTO-6 Drive supports AES-256 Hardware Encryption as well as Hardware Compression. I have no issues…
McFlySoHigh
  • 129
2
votes
1 answer

Ultrium 6250 tape drive ejects and retract the tape multiple times during copy

When I copy to a tape (LTO-6 for instance) the drive eject and retract the tape multiple times during the copy process. After a while it finishes and the files validate when I do a checksum test after the copy process has finished. But because of…
Edgard Knive
  • 473
2
votes
1 answer

I cannot read from magnetic tape LTO-4

The question involves HP LTO Ultrium-4 ( HP C7974A - 800/1.6TB) magnetic tape cartridge. The writing method is TAR. A while ago, I made a terrible mistake by overwriting the beginning of the tape HP-LTO-4 with 1GB of data. I immediately pressed ^C…
Ion
  • 21
1
vote
1 answer

What will happen if I run out of tape during backup?

For example: if I use tar to write on LTO-1 tape (200/100 gb) and during the backup tar hits the end of tape. Will I be able to restore such a corrupted archive? How to solve the possible problem? How to determine how much can the tape store with…
UltrumDev
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1
vote
2 answers

Backup Exec LTO-M8 (LTO-7 Type M) shows only 6TB (LTO 7) instead of 9TB (LTO-M8)

today I installed new empty LTO-7 Tapes into a Library which supports LTO-8. So I should be able to use the "LTO-7 Type M" capacity of 9TB. Actually the Library is showing the tapes with LTO M8, but Backup Exec only shows them with 6 TB of…
HeyThereSmile
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1
vote
1 answer

What is limiting the LTO Tape write speed? How can I observe the ideal listed speeds?

I am testing out a new Quantum Ultrium 8 Tape and Drive. I see the listed maximum uncompressed and compressed data rate, respectively, are 360 MB/s and 900 MB/s. How can I observe/demonstrate this level of performance most simply? I was trying…
Levi Uzodike
  • 221
1
vote
1 answer

Can I use a LTO-7 Ultrium 15000 external tape drive with Ubuntu?

Can I use an external tape drive (LTO-7 Ultrium 15000) with an Ubuntu Linux PC? Do I need to use any app for it or only the driver?
Ali Muhanad
  • 21
1
vote
1 answer

Is that possible to sync disks to tapes?

Normally when we talk about sync, it means sync data from location A to location B on a disk or disk array. Is that even possible to do the sync from a disk to tapes? Lets say I have 15T data on disk and I want to use 3 LTO 7 tapes as destination to…
Root Loop
  • 1,015
0
votes
0 answers

mt command with mkpartition operation on HP LTO-6 drive not working properly

I'm trying to create a second partition on LTO-5 and LTO-6 cartridges using the command mt -f /dev/nst0 mkpartition 100 on a HP LTO-6 drive but it fails with /dev/nst0: Input/output error. I also tried to reduce the value to 10 (so it should make a…
Biduleohm
  • 101
0
votes
1 answer

Windows Server 2019 thinks wrong driver is "Best"

We recently upgraded from Windows Server 2008 R2 to Windows Server 2019. This slowed our tape backup severely, doubling the time to complete our backup to a Quantum LTO tape drive. Searching for updated drivers, I find on Quantum's website a 3.8.0.1…
BrianS
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0
votes
1 answer

Understanding LTO block sizes

I'm currently working with a LTO Tape drive (LTO 3 to be more specific) and I'm looking for some explanation of the block sizes. As I know, there are two supported modes: 0 for a variable block size and any other value for a fixed one. Now to my…
Jonas Born
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0
votes
1 answer

LTO6 speeds maxing out at 70MB/s

I'm using LTFS to transfer 7zip'd files to my LTO6 tapes on a Windows 10 machine with the latest drivers and software. I'm having an issue when writing to the LTO6 drive is maxing out around 70MB/s. Averaging at 63MB/s I have tried copying over my…
Ryan Jeremiah Freeman
  • 178
1
2