CRC data failed?
In the screen of the VM where I am running dragonfly, the console in this case, there is an error about CRC data failed. What is that about?
Re: CRC data failed?
Matthew Dillon writes: Well, when it's on a VM it usually means a crash occured and the VM was lying the operating system when the OS told it to flush its disk caches. What VM were you running it on? VMWare workstation.
Snapshots maintenance
How does one adjust the number of snapshots for hammer to keep? In the man page it says: HAMMER version 3+ The configuration file is saved in file system meta-data The format of the configuration file is: snapshots period retention-time [any] What ist he name of the configuration file? .snapshots.period ? That files does not seem human readable/editable. Also the man page has: see hammer config. Is that another section in the man page or another man page? Tried man 5 hammer and searchign for hammer config in the main man page. To delete a snapshot do I just delete the link and prune? Example I deleted a few links from /var/hammer/root and then did hammer prune /var/hammer/root Got TID 000106239300 - 0001062e2490 TID 000104c82520 - 000106239300 TID 000104a207b0 - 000104c82520 TID 0001043d8dd0 - 000104a207b0 TID 0001040614a0 - 0001043d8dd0 TID 000103616010 - 0001040614a0 TID 0001028fb580 - 000103616010 TID 0001028d5dc0 - 0001028fb580 TID 0001020f72d0 - 0001028d5dc0 TID 0001 - 0001020f72d0 Prune //: 10 snapshots Prune //: objspace 8000: 7fff: pfs_id 0 Prune //: prune_min is 0d/00:00:00 Prune // failed: Input/output error Error? Pruned 0/0 records (0 directory entries) and 0 bytes Don't see any difference in df. When/how is the space regained? Had a lot of extra data so now that I cleaned things up I want to delete the snapshots with the extra data to get the space back.
Re: Snapshots maintenance
Siju George writes: snaprm path ... Got an error: hammer snaprm snap-20110101-0301 Warning: hammer snaprm 0x000104a207b0: meta-data not found The link was deleted anyway. after pruning you need to reblock to gain space Tried hammer reblock / Got reblock start 8000: free level 0 Reblock / failed: Input/output error Reblocked: 0/0 btree nodes 0/0 data elements 0/0 data bytes
Re: Can't connect to ssh
Chris Turner writes: Assuming you have access to the VM console (sounds like) - try It was some sort of VMware issue. I switched from Bridge to a network that was in the exact same subnet. I just wasn't sure if it was vmware or Dragonfly (first production Dragonfly install); once I got replies about no firewalls in Dfly.. all that was left was VMware. Thanks to all who replied.
Re: System doesnt shutdown
Dragon Fly writes: I can't shutdown the system from kde control panel or by shutdown -p now. The system halts but it wont shut down. New install? Did it used to work? If a new install of Dfly, have you had any other OS previouly installed that honored shutdown of the hardware? Although not with Dragonfly (newbie Dragonfly user...) once in while I have bumped into hardware that would have issues trying to turn the power off (have seen it with FreeBSD and Centos).
Re: Can't connect to ssh
Lord Youkai writes: It might be a VM specific configuration issue. VirtualBox, for instance, runs in a NAT setup by default for any VM. You must change the configuration to something like bridged. It is already set to bridged. Will look into VMware then if there isn't a built-in firewall or anything like it. What has me puzzled is that I have not changed the VMware config for the VM and it worked until the crash.
Re: Info on clustering and HAMMER
Tonix (Antonio Nati) writes: I'm monitoring dragonfly since a lot of years, because I'm waiting for a full-clustered OS (I worked deeply with OpenVMS), but I don't see any ... Can anyone point me on the right direction? New user myself. I believe DragonFly doesn't have clustering yet. See http://www.dragonflybsd.org/docs/developer/hammerwishlist/ At the bottom * Clustering Also in that same page at the bottom there is a link to ongoing work which points to clustering as a goal. I believe right now Hammer is able to replicate to a second machine in a master slave mode. However the only docs I have seen for data replication is http://www.dragonflybsd.org/docs/how_to_implement_hammer_pseudo_file_system_ _40___pfs___41___slave_mirroring_from_pfs_master/ Hopefully, others can add more info.
Can't connect to ssh
I have a Dragonfly machine I setup a few days ago as a backup machine. I had it working for several days and I was able to ssh to the machine. The machine crashed because of not enough nbuffers, which after searching archives it was just a matter of running out of memory. It is a VM so I just increased memory from 512MB to 1024MB. After the machine came back up I have been unable to ssh, or ping for that matter, the machine. The VM can connect normally to other machines and VMs in the subnet but I can not ping or ssh to the VM. I am able to telnet to port 22 on the IP it is listening on, 192.168.1.9. Sockstat -4 shows ssh listening in all ports. Is there a firewall by default in Dragonfly? Nothing has changed in the VM configuration and it was working until the nbuffer crash so I am stumped; other than increasing memory nothing has changed since the crash. Any suggestions?
How to tell where/how space is used?
New to Dragonfly and trying to use it as a backup machine. FilesystemSize Used Avail Capacity Mounted on ROOT 53G 11G42G21% / devfs 1.0K 1.0K 0B 100% /dev /dev/serno/0001.s1a 984M 53M 853M 6% /boot /pfs/@@-1:153G 11G42G21% /var /pfs/@@-1:253G 11G42G21% /tmp /pfs/@@-1:353G 11G42G21% /usr /pfs/@@-1:453G 11G42G21% /home /pfs/@@-1:553G 11G42G21% /usr/obj /pfs/@@-1:653G 11G42G21% /var/crash /pfs/@@-1:753G 11G42G21% /var/tmp So the OS sees 11G in use. cd / du -hd 1 38M./sbin 0B./dev 0B./mnt 1.5K./root 561M./usr 12M./bin 38K./proc 2.0K./tmp 9.4M./etc 53M./boot 0B./pfs 3.9G./HFH 34M./var 1.0K./home 4.6G. Du is only seeing 4.6. Where is the rest? Used by snapshots? Is there a way to see the space in use because of snapthos?
Re: How to tell where/how space is used?
Pierre Abbat writes: I think it's a combination of snapshots, directories, and tree structures. I Is there a way to see that breakdown?
