Questions tagged [tape]
Tapes are used by a tape backup machine.
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What are the IOPS and physical block size for modern magnetic tapes?
It's obvious that magnetic tape media performs IO operations as well as HDDs and SSDs, although this storage device is not designed for a random access pattern.
LTO standards define maximal data ...
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mtx returns an error in Windows for an LTO library
I have been using the mtx utility (from Sourceforge) with success in both Linux and Windows environments to manage a tape library. It was last modified in 2008.
Today, at a customer site, we used the ...
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Bareos: Bscan doesn't recover database entries (Tapes from MySQL new server Postgres Database)
I had an ubuntu server 18.04 running with bareos and mysql database.
Monthly I saved data on tapedrive and everything was working fine.
Unfortunately I had a servercrash without a backup of the dump ...
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1
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Tape capacity and backup routine in Linux
I have a HP Ultrium 5-scsi tape device on a Linux server and I'm currently using a HP LTO-5 Ultrium RW (model C7975A) tape and I have a couple of questions regarding this setup and does it work.
1 - ...
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Read LTO Tape ID Tag
LTO 6 Tapes contain a ID tag within the casing (I assume its RFID). Is it possible to read the tag via mt commands?
I would like to identify the tape that is currently loaded in the tape drive.
I'm ...
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HP 1/8 G2 medium changer not detected in Oracle Linux 8
I have a HP 1x8 G2 Autoloader that connected to a SAN switch, on my VMware environment I have an Oracle Linux that should work with the tape.
The problem is after connecting tape to VM, medium changer ...
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IBM LTO4 Backups Failing
I am new to tape backup systems and recently bought a used IBM TS3100 3573-L2U library with a ULT3580-TD4 LTO4 SAS drive as well as some fujifilm tapes. I have followed this guide/HOWTO and am using ...
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Tar extracting from multi-volume tape whilst computing shasums
As part of our backup system, we replicate zfs datasets from a TrueNAS system to a couple of backup servers, one of which is running TrueNAS Scale and has a LTO-5 tape drive connected. We occasionally ...
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Are sony lto6 tapes mp or bf?
Most lto tapes specify MP or BaFe on their labels. Sony ltx2500g tapes dont.
I have two ibm lto6 decks and want to try to keep different tape brands and particle formulations on different machines ...
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mtx commands to open mailslot on HP MSL tape library
I want to programmatically open tape library via command-line. My HP MSL4048 have 3-tape mailslot and 4 magazines, which I can open from web interface only. Reading manuals I understood that opening ...
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Tape drive Connectivity - Fiber channel Vs SAS
We want to change our tape backup system and acquire a LTO8 tape drive.
Something that I cannot find the answer easily is what are the pro&con of the connectivty by Fiber channel or SAS.
For the ...
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Tape backup software for putting multiple backup sets on one tape [closed]
I'm currently trying to install a new tape backup environment (LTO 7, hardware is already set up). As LTO 7 tapes provide a LOT of data space (6/15TB per tape), and the backups that need to be stored ...
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Recycle already formatted DLT IV tapes?
I have a lot of DLT IV Tape Cartridges which were used and written to in DLT 4000 drives.
Now I have a DLT VS 160 drive, which uses the same Tape Cardridges but I can't write onto them.
Searching ...
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AMANDA backup fails with: data read: recv error: shm_ring is cancelled
I have an AMANDA backup process running nightly. About a month ago, we pulled the config into AMANDA 1:3.5.1-build2 (ubuntu package) running on Ubuntu 18.04 (new hardware as well). In the past week ...
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Configure single LTO tape drive over Fiber Channel HBA
How do you set up a single tape storage drive over an FC HBA? As far as I can tell, these things are not "plug and play". The tape drive I bought is an lto-5 FC taken from a tape library.
I have ...
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What kind of algorithm is used in LTO tape hardware compression?
LTO tape drives, from their very first generation, offer hardware compression that, theoretically, allows a maximum of 2 - 2.5x the rated data capacity of each cartridge to be stored, with only a ...
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Fibre Channel Ports and Tape Library
I am looking for advice rather then fix my issue.
What should fibre channel port settings be? Currently F_ports,
I have a qlogic 5800 sanbox switch connected to quantum scalar i40 lto7 library over ...
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3
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Is it worth using WORM Media for archiving? (Not needed for legal purposes)
Apart from regular backups, there is some data that I want to archive (e.g., old projects that aren't needed anymore).
I wonder if there is any benefit to using WORM media instead of regular tapes (...
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439
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Are LTO Hardware compression and encryption standardized?
I'm about to setup a backup using an LTO-4 Drive. I know that drives are meant to be compatible to any tape within the past 3 generations (so I should be able to read an LTO-4 tape using an LTO-4, 5 ...
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Activate Tape Encryption on Windows Server
We use windows to make tape (LTO 8) backups with ltfs and now I want to use the hardware encryption. My problem is I can not find a way to activate it. For Linux I found "stenc" but is there something ...
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Attaching more than one Server to a Tape Library
We are running multiple Dell PowerEdge's and want to connect them to a Dell TL1000 Tape Library.
For my understanding, what we need is HBA cards for each Server to get the SAS connection.
I ran into ...
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Does fast-eod make difference with LTO tape?
mt-st has an option:
fast-eod： space directly to eod (and lose file number)
I run the eod operation with/without this option, but is seems no significant difference. Does fast-eod make difference ...
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Do LTO tape drive move when switching partition?
As everyone already know, tape winds between BOT and EOT when reading/writing data in the same LTO partition.
But what if a tape drive read data in different partitions? Will it move across wraps in ...
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LTO-4 Tape Write Source Throughput Needs
I am looking to begin a tape backup regimen and am looking to keep data flowing to the tape drive in a sufficient manner (120+MBs target sustained) but cannot figure out how to do so without a ...
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find out the file system from a tape
Is there any way to find out the file system from a tape under Linux (CentOS)? I need this to figure out if a tape is already LTFS or not.
At the moment I know:
mtx # for managing a tape library
mt #...
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Compression on tape set..but at 2.27TB..end of space
I have a LTO6 tape inserted
tapeinfo -f /dev/st0
Product Type: Tape Drive
Vendor ID: 'QUANTUM '
Product ID: 'ULTRIUM 6 '
Revision: '4142'
Attached Changer API: No
SerialNumber: 'HU1322VW9U'
...
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Multi-tape Backup Script
Bear with me, this is my first post on any kind of Stack Exchange type of website. I’m working on creating a backup server to store the data from my storage server onto multiple tapes in my tape ...
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Do LTO tapes have spare/unused capacity?
As I understand it, LTO tapes write data in "wraps", where the first wrap unspools the tape into the drive, and the second wrap spools it back into the cartridge. This process is repeated a number of ...
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What could cause an LTO drive to write at half its capacity?
I have an LTO4 drive that when given even new LTO4 tapes, only writes around 460GiB to the tape even though the tape's uncompressed capacity is supposed to be 800GB.
I have noticed that in one ...
- 1,015
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Determine remaining capacity of LTO tape
How can I determine how much space is remaining on an LTO tape?
If I seek to the end and check the status, I can see I am on file number 17, but what I do not know is how large each file was.
$ mt -...
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tar throwing input/output error when reading from tape, but file is ok
I've written about 1.5TB of files onto a tape with
tar -b 512 -clpMvf /dev/nst0 /path_to_stuff
Everything worked well, no error messages. Now if I try to read it back from tape with
tar -b 512 -...
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4
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How to use the full LTO-2 Tape backup capacity of 200/400GB?
I have an Ultrium 448 tape drive, LTO-2 tapes (200/400GB) and I'm using HP Data Protector as the backup client. The system is set to format and overwrite all tapes but I never manage to get more that ~...
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Veeam Marks Data Tape as Cleaning Tape
Today I ran into the issue described on this Veeam Community Forum post. Under specific circumstances, Veeam inadvertently marks a legitimate tape as a cleaning tape, removing it entirely from view in ...
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8mm Data8 tape drive compatibility for Maxell HS-8/112 and 3M D8-112
We have a Exabyte Mammoth-2 tape drive connected to a Solaris 10 box that's currently able to restore any Exabyte media no problem, but we have two other brands of 8mm tape that are shown as "illegal ...
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Loading specific tape volumes using mtx
I am trying to extract data from a set of tapes. Currently, there are five of them in the tape-magazine.
I have tried using the mtx command without much success.
Heres the output of
mtx -f /dev/...
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Link between tape drive library index and its serial number on linux
I need to map system devices to their index in tape library on linux.
How could I know by what index number in mtx command refers to a particular drive?
I can get mapping between drive serial numbers ...
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Pre-labelled LTO-6/LTFS tape numbers- Are the tape numbers stored somewhere on the tape?
I have some Fujifilm LTO-6 tapes which come labelled with tape numbers. I'm writing a script and I would like to assign a variable from the tape number. Is this information stored anywhere on the tape?...
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Restore data from tapes made on old irix system (on linux)
Hey guys I'm looking for some help. I'm trying to get the data off of some old SDLT tapes probably 11+ years old. I don't know anything about them besides they were made on an irix system and I do not ...
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Tape Library backup terminology
We are looking for Tape Backup solutions but bit confused the difference between LTO Tape Drive and LTO Cartridges .
We want to backup data (1 PB) from Linux servers for long term secure environment. ...
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Anyone using VTL for backups?
I would like to know if VTL is really a valid option nowadays? Is anyone here using it and why actually? Does it have any benefits compared to a regular server stuffed with SATA drives in RAID6/10?
...
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System Center 2012 R2 DPM loading tapes from library out of order
I have a System Center 2012 R2 Data Protection Manager (DPM) configured and working properly. The server has a SAS Tape Library with 24 tapes, and the DPM shows all tapes.
But when a backup to tape ...
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Quantum Scalar i80 - I see the tape drive, but not changer
I have a Quantum Scalar i80 connected via SAS to a CentOS 6 server. When I look in /proc/scsi/scsi, I see the tape drive, but I don't see the changer.
From /proc/scsi/scsi:
Host: scsi8 Channel: 00 ...
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Tape drive unusable on 14.04 ESXi VM
The problem
I've got an Overland ArcVault connected to my system (actually a virtual machine, with the standalone SCSI card it's connected to in passthrough mode), but it seems like the named tape ...
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Where to find infos about functions and opportunities for backup / archive systems
we are thinking about building an archive system (>1PB) to store video-files.
Probably this complex system will be assemble by different technologies and sub-systems. But one decisively point will be ...
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What format does commvault restore to for SQL server backups?
I have a pretty challenging task that I need to figure out.
I have 6TB of data in New Hampshire that I need to move to Texas. It is all SQL Server data. The data is backed up to tape via Commvault as ...
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HP MSL2024 not auto changing tapes using Ultrabac 9.2.2
I am using Ultrabac 9.2.2 to run backup sets to a one drive HP MSL2024 tape library. It's currently connected via SAS 3Gbs to a HP Proliant DL380G6 running Server 2008 R2. I have the drivers from HP ...
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How to mount host's VMFS datastore from a guest?
I'm trying to backup VMs using a CentOS 6.5 VM and a tape library, the tape library is connected via SAS pass-through and it mounts on CentOS. The backup will be done copying the entire VM folder on ...
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HP P212 RAID + Tape Library = Kernel Panic
I have a HP DL320e g8 v2 server running CentOS 7.1 (kernel 3.10.0-229.4.2.el7.x86_64). The onboard B120i SmartArray was disabled, and a PCI-Express P212 SAS HBA was installed with two identical 3TB ...
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Bacula: best practise for labeling and initial start
I'm currently starting with bacula for backup and have a few questions for best practices.
Current situation:
I want to back up a slow changing max. 12TB (currently 8TB) dataset to a external LTO4 ...
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4
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Determining LTO Cleaning Tape Expiration?
I have some LTO tape drives, and use cleaning tapes as required, but the lifetime of the cleaning tapes is not as predictable as I would have expected. I'm looking for a way to query the system, ...
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