[RFC proxmox{,-backup} 00/13] gc maintenance mode and full datastore protection

[Robert Obkircher <r.obkircher@proxmox.com>]

Add a maintenance mode that only allows garbage collection, and avoid
running out of space by checking how much is available before writes.

I mostly wanted to ask if it really makes sense to add the maintenance
mode. It could also just be treated as a special case where the entire
space is reserved.

I'm also not super happy with the "check before writes" approach but I
couldn't come up with a better apporach either. Let me know if you have
other ideas.


proxmox:

Robert Obkircher (3):
  pbs-api-types: add datastore operation variant for reclaiming storage
  pbs-abi-types: add GarbageCollection maintenance mode
  pbs-api-types: add reserved space to datastore tuning options

 pbs-api-types/src/datastore.rs   |  8 ++++++++
 pbs-api-types/src/maintenance.rs | 18 +++++++++++-------
 2 files changed, 19 insertions(+), 7 deletions(-)


proxmox-backup:

Robert Obkircher (10):
  task tracking: count Reclaim datastore operations as writes
  datastore: open datastores with Reclaim instead of Write operation
  fix #5797: www: display new GarbageCollection maintenance mode
  www: access active operation fields by name instead of index
  www: don't claim that all active writers are gc mode conflicts
  chunk_store: add method to limit file system usage
  chunk_store: check file system space before inserting new chunks
  datastore: check file system space for blobs and group notes
  api2: backup: check space for fixed and dynamic index files
  fix #7254: datastore: refuse new backps when capacity is almost full

 pbs-datastore/src/chunk_store.rs       | 46 ++++++++++++--
 pbs-datastore/src/datastore.rs         | 15 +++++
 pbs-datastore/src/file_system_limit.rs | 87 ++++++++++++++++++++++++++
 pbs-datastore/src/lib.rs               |  2 +
 pbs-datastore/src/task_tracking.rs     |  2 +
 src/api2/admin/datastore.rs            | 12 ++--
 src/api2/admin/namespace.rs            |  2 +-
 src/api2/backup/environment.rs         | 23 +++++++
 src/api2/backup/mod.rs                 | 19 +++++-
 src/api2/config/datastore.rs           |  2 +
 src/bin/proxmox-backup-proxy.rs        |  2 +-
 src/server/prune_job.rs                |  2 +-
 www/Utils.js                           | 24 +++++--
 www/datastore/OptionView.js            | 19 +++++-
 www/window/MaintenanceOptions.js       |  1 +
 15 files changed, 236 insertions(+), 22 deletions(-)
 create mode 100644 pbs-datastore/src/file_system_limit.rs


Summary over all repositories:
  17 files changed, 255 insertions(+), 29 deletions(-)

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