Storage Analyzer

DSM Version

Storage Analyzer


  • Scheduled storage analysis provides close monitoring of storage usage growth
  • Detailed reports generated for efficient management and organization of storage
  • Custom criteria to analyze the storage space of specific files to meet different needs
  • Reports exported in CSV files can be processed by IT administrators for advanced usage
  • Duplicated file detection to free up unnecessary occupied space (See limitation 1)


  • Provides detailed analytic for the following attributes
    • Quota
    • File owner
    • Volume usage
    • Shared folder size
    • File group
    • Duplicate files
    • Large files
    • Most recently modified files
    • Least recently accessed files
  • Supports analyses of the following default file types (Users can also add customized ones)
    • Zipped files
      • 7z, bz2, gz, rar, tar, tbz, tgz, and zip
    • Pictures
      • 3fr, arw, bmp, cr2, crw, dcr, dng, erf, gif, ico, jpe, jpeg, jpg, k25, kdc, mef, mos, mrw, nef, orf, pef, png, psd, ptx, raf, raw, rw2, sr2, srf, tif, tiff, ufo, and x3f
    • Videos
      • 3g2, 3gp, asf, ass, avi, dat, divx, dvr-ms, f4v, flv, ifo, m2t, m2ts, m4v, mkv, mov, mp4, mpeg, mpg, mts, psb, qt, rm, rmvb, smi, srt, ssa, swf, tp, trp, ts, vdr, vob, wmv, and xvid
    • Audio
      • ac3, aif, aiff, ape, dff, dsf, flac, m3u, m4a, m4b, m4p, mp1, mp2, mp3, mpa, ogg, pcm, pls, ra, ram, wav, wma, and wpl
    • Documents
      • docx, pdf, pps, ppsx, pptx, rtf, txt, wri, xla, xlam, xlb, xlc, xld, xlk, xll, xlm, xlsb, xlsm, xlsx, xlt, xltm, xlv, and xlw
    • Web pages
      • actproj, ad, akp, applescript, as, asax, asc, ascx, asm, asmx, asp, aspx, asr, c, cc, cpp, cs, css, cxx, htm, html, jsx, mhtml, php, xhtml, and xml
    • Disk image files
      • bin, daa, img, iso, mds, and nrg
    • Executable files
      • exe
  • Locates duplicate files
  • Exports reports to CSV files


  1. The maximum number of duplicate files found in each report is 5,000
  2. Only the top ten volumes with the highest usage are shown when there are more than ten volumes on a Synology NAS
  3. Only the 200 largest files are listed in the Large Files section of usage reports