Hi all
we've this big issue and we've a suspect is caused by something related to the Sanlink2 adapter (or maybe the driver itself). Our network consists of 10 Macpro, with 8 configured with sanlink2 adapters (eth version), linked to a NETGEAR XS708E switch and a Synology NAS RS3614xs+. The problems are random slowdowns and hangs during read/write operations (from client to mounted remote volumes). In this situation the TX rate drops from normal 10 Gb speed to 512 Kb/s! This strange problem is not reproducible and normally happens while we save files from Photoshop or Indesign; the saving process slowdowns dramatically and sometimes we've waiting several minutes before it ends normally. We've verified both destination routes and devices (the Synology with its network adapter and the Netgear switch)... both are OK and are running without any visible problem. Server logs are OK.
When the first slowdown succeded, all transfers from/to server are slowed as well: during this hangs is virtually impossible to copy a file using Finder, and the normal navigation on the remote volume is strongly compromised... The only way to fix it is to disable/enable the Sandisk2 device on Network Control Panel (client side). Note that this fix is only a temporary workaround because the random hangs are still presents and possibles. Note also that this issue isn't size-related and can trigger with small or big files, without any differences.
It can be a driver problem? We've 7 Macpro with El Capitan and 1 with Yosemite. All clients are running the latest version of Sanlink2 driver.
We've some wireshark logs if needed (taken during one of these hangs).
What can we do to fix it? Is there any experience about similar issues?
Thank you.
Hangs, slowdowns on Mac OS X 10.11
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- Last Post 21 August 2016
Maurizio Pluscolor
posted this
19 July 2016
- Last edited 19 July 2016
Jerry Lin
posted this
21 August 2016
please go to https://support.promise.com
Thank you
