SABnzbd article success rate is the share of article requests your configured servers actually answered while jobs ran. It is the clearest home metric for whether your primary earns its keep and whether optional fill does anything real. Forum screenshots of 99.9% mean little until your own History and server stats agree on the NZBs your indexers send. Treat the number as a diagnostic, not a trophy that justifies a third unlimited twin.
What the metric is counting
Every NZB is a list of Message-IDs. SABnzbd asks Priority 0 for those articles, then optional servers when configured. Success rate reflects articles received versus articles attempted across that path. A provider can advertise enormous retention and still look weak on your success rate if your indexers point at heavily scrubbed releases or if SSL and credentials are wrong.
Completion after PAR repair is related but not identical. You can have high article success and still fail unpack because of a bad NZB or disk error. You can also repair a job that had modest misses if PAR data landed. Read what is Usenet completion beside this page so the two ideas stay distinct.
Healthy ranges without obsessing
Many happy automation homes sit in the mid-to-high nineties on a good primary with sane indexers. Fresh TV often looks better than contested older remuxes. A dip during a backlog week is a signal to inspect, not an emergency to buy Easynews beside Newshosting.
Chasing 100% is how shoppers fund useless Priority 1 twins and third unlimiteds. If you are already considering another full-price provider, read best third Usenet provider and ask whether optional fill on a different backbone would move the needle first.
How to improve the rate in order
Fix client basics before shopping. Confirm SSL, correct host and port, username, password, and that Priority 0 is your intended flagship. Too many connections on a weak NAS can stall jobs without inventing articles. Connection guidance: Usenet connections explained.
Next, separate provider problems from indexer problems. Same NZB failing across providers usually means a bad or outdated NZB. Try another release from a second indexer before you blame the backbone. Indexer count reality check: how many Usenet indexers.
When misses cluster on contested packs and a diverse optional server still holds segments, enable optional fill. Do not add UsenetServer or Easynews as fill beside Newshosting. Those are Highwinds twins. Practical repair path: fix incomplete Usenet downloads and DMCA primary + NTD fill.
Reading per-server stats
SABnzbd breaks success down per server when you look. Priority 0 should do most of the work on a healthy primary. Priority 1 should show activity only when optional fill runs, and those articles should be ones the primary missed. If Priority 1 is a twin and shows the same misses, you are paying for a second invoice with no new fate.
A fill server with near-zero use after a month either means your primary is excellent for your library or the optional flag and credentials are wrong. Check before canceling a useful block account. Check before renewing a useless twin.
Provider versus indexer versus disk
Article success will not save a full disk, a sleeping PC mid-job, or a category pointed at the wrong folder. It also will not fix quality profiles that reject every release before Usenet is asked. Change one variable at a time: client health, then indexer alternate NZB, then provider diversity.
Avoiding garbage NZBs up front helps more than another unlimited logo. See avoid incomplete NZBs. Setup baseline: SABnzbd setup guide.
History windows and NZBGet users
Keep enough History to judge at least a few weeks of mixed TV and movies. Resetting stats every weekend makes every promo look like a miracle. NZBGet users should watch completion logs and per-server counters with the same skepticism: pretty marketing retention is not your library's success rate.
After you add fill, compare the week before and after. If success rate barely moves, the fill server may overlap your primary or your failures were never article misses. If it jumps on the titles that used to fail PAR, you bought the right second role.
FAQ
- Should I use per-server stats?
- Yes. They reveal useless fill and twin overlap faster than overall averages.
- What is the NZBGet equivalent?
- Watch completions and server logs the same way. The principle is identical even if the UI label differs.
- Should I reset History often?
- No. Keep enough history to judge a month of real grabs, including backlog nights.
- Is 100% required?
- No. Mid-to-high nineties with clean unpacks is a common healthy home. Obsessing funds bad carts.
- Can Easynews raise my SABnzbd success rate if I already use Newshosting?
- Not as fill. Same family story. Use diverse optional fill if articles are missing.
Related
- SABnzbd setup guide
- What is Usenet completion
- Avoid incomplete NZBs
- DMCA primary + NTD fill
- Fix incomplete downloads