Charles,
I was beginning to suspect this myself, having seen the www.ciao.com
website already. But Spectra Logic's own website lists both the
compressed and uncompressed speeds as 32MB/s. I'm starting to think
they just lie on their site.
On Jun 24, 8:10 pm, Charles Chou [EMAIL PROTECTED]
Hi Michael,
Companies inflate their performance numbers all the time. To be fair
the HiFN box was a full computer with a 3G Hz P4 with hyperthreading and
1G memory. It is kind of hard to pack that into a small enclosure and
charge little for it. It would be interesting to find out how
Michael wrote:
Hi all,
I've been using open-iscsi to set up an IBM Ultrium LTO-4 tape drive.
I can connect and transfer files and everything, but the maximum read
or write speed I can get is like 16MB/s by tweaking the block size. I
am on a gigabit network, which the tape drive supports.
Thanks for the suggestions. Everything you suggested checked out.
Speed is definitely 1000Mb/s, no errors, and hard drive speed is
plenty quick. Also, the tape drive itself isn't iSCSI, the enclosure
is (Spectra Logic NAStape 250). Any other suggestions?
On Jun 18, 8:07 pm, Sparqz [EMAIL
I must have really dark sunglasses on, because I've never seen an
iSCSI tape drive before?
Anyhow, I don't think your MTU (lack of jumbo frames) is the problem,
I can easily get 50MB/s sustained transfers over a gigabit network.
First I would confirm that the path between your linux iSCSI
Hi all,
I've been using open-iscsi to set up an IBM Ultrium LTO-4 tape drive.
I can connect and transfer files and everything, but the maximum read
or write speed I can get is like 16MB/s by tweaking the block size. I
am on a gigabit network, which the tape drive supports. The drive
Also, may not have anything to do with it but when I peek at the
network with wireshark while writing to the drive, I see TCP Checksum
Incorrect from my computer to the tape drive.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the
