Re: NDMP Backup speeds
Basil <[email protected]> Wed, 2 Jun 2021 15:52:54 -0400
| Newsgroups | gmane.comp.hardware.netapp |
|---|---|
| Message-ID | <CAHw_Z3oaQB2W2xccuEZm6LJdLrxEbqW0Ao_jS=Li15XhZ+Gk-g@mail.gmail.com> |
Another thing we’ve observed is that since NDMP has to enumerate the entire file system, backups of locations with lots of inodes can take a long time and drive high levels of CPU and memory utilization. On Wed, Jun 2, 2021 at 3:45 PM tmac <[email protected]> wrote: > How about this for the win? > > > https://docs.netapp.com/ontap-9/topic/com.netapp.doc.dot-cm-ptbrg/GUID-6EC88448-13B9-41E9-A8BD-218E5343D7DF.html > > --tmac > > *Tim McCarthy, **Principal Consultant* > > *Proud Member of the #NetAppATeam <https://twitter.com/NetAppATeam>* > > *I Blog at TMACsRack <https://tmacsrack.wordpress.com/>* > > > On Wed, Jun 2, 2021 at 9:41 AM Heino Walther <[email protected]> wrote: > >> Hi there >> >> >> >> We are doing NDMP backups from out FAS2750 with NL-SAS disks onto LTO8 >> tape drives via NetBackup. >> >> For other reasons we are doing this via 10G Ethernet, and not directly >> connected tapedrives to the NetApp controllers. >> >> We are seeing backup speeds of about 40-50MB/sec. which is kinda slow, >> the backup is a Windows host that is doing nothing… no CPU or memory load >> as we backup. >> >> The LTO8 drives should be able to do much better (350MB/sec. before >> compression)… >> >> The aggregates are RAID-TEC with 17 drives in it. We are on ONTAP 9.7. >> We are not seeing a lot of load as we are running the backups… >> >> Could it be that the protocol itself it as cause here? >> >> In the “old days” we did NDMP backup directly from the controllers to the >> tape drives. >> >> We are now thinking of converting two 10G ports to fibrechannel ports… >> if possible… >> >> So I have two questions 😊 >> >> >> >> The FAS2750 is configured with RJ45 10G ports, but would it be possible >> to use FCoE and somehow connect this to a FC/Ethernet switch and be able to >> connect it to the tape drive which is 8G FC (LC Connectors) ? >> >> (I have not worked that much with FCoE… if the FAS2750 was configured >> with CNA-Ports, it would have been easy to convert that into FC) >> >> >> >> Has anyone tried to backup NL-SAS volumes similar to this over directly >> connected NDMP, and what kind of speeds are you seeing? >> >> >> >> Finally if anyone have any idea if the NetBackup setup can be tweaked >> somehow, that would also be useful… (we have tweaked it a bit) >> >> >> >> /Heino >> _______________________________________________ >> Toasters mailing list >> [email protected] >> https://www.teaparty.net/mailman/listinfo/toasters > > _______________________________________________ > Toasters mailing list > [email protected] > https://www.teaparty.net/mailman/listinfo/toasters _______________________________________________ Toasters mailing list [email protected] https://www.teaparty.net/mailman/listinfo/toasters