Client - Media - PureDisk Linux network traffic
Hello everyone. We have a backup solution and I am trying to find a bottleneck. Configuration is as follows: Veritas SFHA clustered Master server running NBU 7.5.0.6 on RHEL6.1. Number of Media servers. And 3 pairs of PureDisk 6.5.5 pools as a storage servers. My concern is: How does network traffic flow during backup assuming clientside deduplication is enabled? I tried tcpdump and appears that it is client - media - puredisk and vica-versa. But there are nbstproxy processes. Appreciate on any assistance. Thank you.Solved4.1KViews0likes2Comments
How to eradicate Msg 824, Level 24, State 2, Line 1
I am getting this error while executing "DBCC CheckDB('test') WITH NO_INFOMSGS, ALL_ERRORMSGS, TABLOCK" Msg 824, Level 24, State 2, Line 1 SQL Server detected a logical consistency-based I/O error: incorrect pageid (expected 1:16514; actual 0:0). It occurred during a read of page (1:16514) in database ID 8 at offset 0x00000008104000 in file 'G:\test\test.mdf'. Additional messages in the SQL Server please help me out with dis problem the database is in emergency mode. It is not getting recovered2.7KViews0likes0Comments
About Pure Disk
Hi All, Kindly let me know the following few questions about pure disk. 1)what is pure disk? 2)About pure disk architecture? 3)About pure disk deduplication? 4)About pure disk web user interface? 5)Can i know the role of vssadminlist writers related to system state backup failures in pure disk.Solved3.8KViews3likes2Comments
SLP Duplication Behaviour
Master Server ( nbu01 ) Windows 2008 NetBackup Master 7.5.0.7 Media Server ( nbu02 ) Window 2008 NetBackup Media 7.5.0.7 MSDP with puredisk Setup storage server load balancing for dedupe pool nbu01 and nbu02 setup SLP backup to disk then duplicate to tape both nbu01 and nbu02 connected to the same tape library ofcourse with SSO enable All backup and duplication went well but found out that during duplication to tape, always server nbu01 trigger to job even the tape storage unit is connected to nbu02. I want to know if duplication job trigger from nbu01, let say backup image is 100GB, from the dedupe guide, it say that it will always rehydrate the data where the dedupe pool server is, so means nbu02, so do this means that it will send 100GB data to nbu01, then nbu01 will send back 100GB of data back to nbu02, because i select tape storage unit that connected to the nbu02, and write to tape. If above is true, means my bottleneck will be at the LAN, and how do i force only use nbu02 during duplication job. I also planning to remove the load balancing, since i dont see much help on the backup and duplication, but i still have job queuing for duplication. If i inactive those job, remove the nbu01 from the load balancing, and activate backup duplication, will the duplication job still look for nbu01 ? or i need to cancel all job, and do manual duplication ? anyone please help.1.3KViews0likes2Comments
Netbackup Appliances 5230 with PureDisk: How many streams?
Hi all, We recently migrated to Netbackup Appliances running Netbackup 7.6.0.1 (Appliance version 2.6.0.1 ) We are running 2 appliances per site, each site is its own NBU domain (We use AIR to replicate). Each appliance is configured with a 70TB PureDisk volume. We are quite new to PureDisk that is running on these systems, but at this moment they are limited to 80 streams maximum in the diskpool object (Which seems pretty low to me) At the moment we are running out of resources due to this maximum that has been set. What is the maximum streamcount a 5230 Appliance PureDisk can safely handle? Note that we are using AIR to replicate all our images, but replication is being done during the day, not during backup times... Any advice is greatly appreciated! Thanks!1KViews1like2Comments
NBU-Duplication issue
hi guys, i'm facing a strange issue when duplication images from my AdvDisk... if i run backup with my Netbackup 7.5.0.5 to Advdisk its successful and duplicating simultaniously to puredisk the performance is OK up to (87000KB/SEC) if i run backup with my Netbackup 7.5.0.5 to Advdisk its successful and duplicating simultaniously to tape LTO4 the performance is ok OK up to 70000KB/SEC) BUT if duplication to both PDDO and LTO4 in the same time the performance is 43 000 KB/SEC i spent many days reading the logs ( nbsl, nbpem, nbjm nbrb , nbstserv ,vxlogcfg etc ) i couldnt find any errors or a source limiting the performance all what seems to me strange is when writing to tape the bptm reporting in more than 300 lines : write_data: writing block shorter than BUFF_SIZE, 65536 bytes write_data: writing short block, 65536 bytes, remainder 0 seems it's related to what previously found : DUP_BLKSIZE ( in bptm) are by default set to 65536 (64K) so when we duplicate to tape the read requests pass the data in 64 , and the backups written to Advanced disk normally on the disk array the data is being written in 512K if it’s not more, if we will duplicate by passing data in 64K which is insufficient because it will require more (Input/Output Per Second) = the performance decreasing ….. IS it related ???? the Master is an AIX, Appliances 5220 any help sugesstion ? thank you in advance778Views0likes0Comments
How to determine if CR rebasing completed
Hi, I am trying to find a way to find out if the post 6.6.3a PureDisk upgrade Content Router rebasing has completed. It is quite easy to check with the crcontrol if the rebasing option is enabled or disabled at all but I would like to know if the rebasing is still "in progress" or is this "completed". I am aware that this rebasing runs in backgroud and not 24/7 but how to check if all CR entries have been rebased?? Thanks!1.8KViews1like4CommentsCLI Command For Dedup Rates
NBU Experts, Do any of you know if there is a CLI command that can tell the dedup rate for all the images created, and stored in a PureDisk pool? For examaple, if I run bpimagelist on the master server I get some good info, but not the dedup rate for each image. Thanks, AVazquez2.6KViews0likes7Comments
