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Tim Gerhard
October 22, 2019 at 7:08 pm in reply to: Mac Pro running macOS 10.13.6 wont read HP Ultrium 3000 SAS

HPE LTFS and the BRU have nothing to do with your problem. You need to resolve the SAS connection first.

If the ATTO HBA is showing up in the system information SAS tab and says the driver is installed then you these could be your culprits:

SAS Cable is bad
SAS port on ATTO HBA is bad
Tape Drive SAS port is bad
Tape Drive Controller is bad

Probably not it…. don’t try to use ATTO RAID drivers with a non-RAID card. Do make sure you have the H644 DRIVER only.

If all else fails your data is not gone. You just need to get a working computer or tape drive.

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
June 27, 2019 at 7:34 pm in reply to: P5 archive software

I have many customers running Archiware for their tape libraries. It is probably the most reliable software for TAR backups to a tape library on MAC.

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
June 6, 2019 at 5:02 pm in reply to: How to manage an incremental backup?

If you’re on MAC take a look at Archiware. If on Windows look at Acronis.

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
April 29, 2019 at 2:53 pm in reply to: LTO 7 Capacity (not M) in a LTO 8 Drive

Sure you can use a regular LTO7 tape in an LTO8 drive. I’m assuming by your subject you’re asking for the real capacity?

Just like a hard drive, it’s usually a bit less than the stated amount. An LTO7 would be like 5.5TB in reality or possibly less. There is no gain in capacity by using an 8 drive over a 7 etc.

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
April 18, 2019 at 5:49 pm in reply to: BRU and LTO6 verification all of sudden incredibly slow?

You can download HP LTT Library & Tape Tools to run a performance and health diagnostic on your tape drive to rule the tape drive out.

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
March 6, 2019 at 8:06 pm in reply to: LTO-7 capacity issue

Are you using the RAID through the ATTO Thunderlink too? If the ATTO is downgrading to 3G SAS that would be a reason why the tape drive and RAID can’t work together. If the RAID is TB3 use a different port on the left-side, do not daisy chain through the Thunderlink.

In reality it’s most likely the ATTO Thunderlink as the culprit because it downgrades you to 3G SAS , but it’s hard to prove that to them unless you have a native SAS environment to show the drive works there.
https://www.atto.com/pdfs/FAQ-Connecting-to-LTO-SAS-Tape-Drives.pdf

Tim Gerhard
MagStor Inc.
LTO Solutions TB3 / SAS / USB / FC
614-505-6333
tgerhard@magstor.com
Tim Gerhard
February 28, 2019 at 9:23 pm in reply to: LTO-7 capacity issue

If you’re passing all the health and performance in the HP LTT then your ATTO Thunderlink is having issues with your Transport Layer Retries (TLR).

ATTO recommends setting the device from 6G SAS to 3G for better stability. You’re still probably going to have some problems though especially if trying to do more than 1TB without a solid TLR. Plus 3G SAS isn’t ideal for an LTO7.

HPE is going to point fingers at ATTO and vice versa especially if HPE LTT is showing the drive is healthy. I’d say run a full tape test on HP LTT to see if it craps out after the 2TB+ mark again.

Tim Gerhard
MagStor Inc.
614-505-6333
tgerhard@magstor.com
Tim Gerhard
February 28, 2019 at 8:21 pm in reply to: LTO-7 capacity issue

Run HPE LTT (Library and Tape Tools). https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c00352573

You can run a diagnostic on your tape drive. If it’s brand new and has a cleaning light on you most likely have a defective unit.

Don’t try to use any USB 3.0 ports with a Thunderbolt 3 adapter either, it won’t work. Most Macbook Pros are all Thunderbolt 3 / USB-C though. I have noticed a trend with Macbook Pro’s that the left-side ports are the true TB3.

Tim Gerhard
MagStor Inc.
614-505-6333
tgerhard@magstor.com
Tim Gerhard
February 18, 2019 at 11:34 pm in reply to: LTO8 Media / Cartridge Shortage

The case has been delayed until March 25th due to government shutdown.

https://www.usitc.gov/secretary/fed_reg_notices/337/337_1058_notice_02082019sgl.pdf

Tim Gerhard
MagStor Inc.
614-505-6333
tgerhard@magstor.com
Tim Gerhard
February 7, 2019 at 10:24 pm in reply to: I am lost in archiving using YoYotta LTFS

Using a Stardom USB hard drive is a speed bottleneck. LTO6 drives are also much slower than LTO7/LTO8. You can do up to 160 MB/s on LTO6, but a USB 3.0 hard drive is usually max 140 MB/s under ideal situations.

You would probably go faster if you used an SSD or if your HDD was in a RAID and connected by Thunderbolt or at least USB 3.1

Tim Gerhard
MagStor Inc.
614-505-6333
tgerhard@magstor.com

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