Buffer Delay in our new Netbackup Environment is this normal?
Hi, I'm running a new NBU (10.1.1) environment, and we have struggled with the fine tuning of NBU slow performance. It has been 9 Days now since we started the implementation and finally we kinda have some performance improvement. Though, I wanted to ask if this can further be improved? Previously we came from MF DP 10 (Prev. HPE) - my autoloader does not stops and idle then after a few seconds it writes again. I have already approached Veritas Tech support team for assistance but the solution they provided made my backup ran slower both writing and elapsed time. Our Environment: Both servers are HPE DL380 Gen 10 / Media Library attached to the Media Server is HPE Store-Ever 1/8 Gen 2 (LTO-8) 300MB/s Native write speed to tape, / SAS Cable Transfer rate: 6.2GBps Master server is on a separate Window Server 2016. 64GB Ram 8TB Data storage free space. Media/Client server is on a same Windows Server 2016 with 256GB Ram and 28TB storage capacity. Right now I'm are running Full Backups every night. We modified these settings in the Veritas\db\config directory: Modified the following settings with these values: (This is the best we can do right now) * CHILD_DELAY = 5 * NUMBER_DATA_BUFFERS = 512 * PARENT_DELAY = 3 * SIZE_DATA_BUFFERS = 1048576 And we have around 4.2TB of Data to backup and it now takes about 6 and a half-hours to complete. But without the optimization using all default values it took around 21Hours to complete. I read in another Vox Article that delays and buffers are bad for Autoloaders, since they are not designed for STOP/WRITE functions, which could damage both the tape and drive. I would appreciate if you can provide a link for buffer / delay tuning guide for my environment. Media server is writing directly to the connected autoloader (HBA SAS Cable). I consulted with an HPE Server / Autoloader Engineer, according to him, there are no settings to configure on the Autoloader front panel control itself. Everything is controlled and configured by software (i.e. Backup Software - NBU) which means fine tuning the NBU to improve the performance and minimize the delay. Appreciate if you can give provide help and advice. Thank you and Regards,2.5KViews0likes8CommentsOPS Center SQL Query for policy chnage information
Hi All, I need a help to get the query or create the Ops center SQL query to see which id(NBAC is enabled already) have changed the policy and what have been changed(e.g policy Type, storage Unit, schedule)in the policy. Please help me someone. Thanks Mainak Das1.4KViews0likes6Comments