IBM System x3850 X5 16Internal storageThe server supports either up to eight 2.5" drives or up to 16 1.8" drives internally. The number of drivesthat can be inserted depends on the backplanes that are installed. Backplane options are listed in thefollowing table. The backplanes that are standard in each model are listed in Table 2.Table 11. Drive backplane optionsPart number FeaturecodeName Maximumsupported59Y6213 4191 IBM eXFlash 8x 1.8-inch HS SAS SSD BackplaneSupports eight 1.8" drives (includes two SAS cables)259Y6135 3873 IBM 2.5" Hot Swap SAS Hard Disk Drive BackplaneSupports four 2.5-inch drives (includes one SAS cable)2Internal drive optionsThe following table lists the hard drive options available for internal storage.Table 12. Disk drive options for internal disk storage (Part 1)Part number FeaturecodeDescription Maximumsupported2.5-inch 15K SAS hot-swap HDDs81Y9670 A283 IBM 300GB 15K 6Gbps SAS 2.5" SFF HS HDD 842D0677 5536 IBM 146GB 15K 6Gbps SAS 2.5" SFF Slim-HS HDD 890Y8926 A2XB IBM 146GB 15K 6Gbps SAS 2.5" SFF G2HS HDD 82.5-inch 15K SAS hot-swap SEDs44W2294 5412 IBM 146GB 15K 6Gbps SAS 2.5" SFF Slim-HS SED 890Y8944 A2ZK IBM 146GB 15K 6Gbps SAS 2.5" SFF G2HS SED 82.5-inch 10K SAS hot-swap HDDs00AD075 A48S IBM 1.2TB 10K 6Gbps SAS 2.5'' G2HS HDD 881Y9650 A282 IBM 900GB 10K 6Gbps SAS 2.5" SFF HS HDD 849Y2003 5433 IBM 600GB 10K 6Gbps SAS 2.5" SFF Slim-HS HDD 890Y8872 A2XD IBM 600GB 10K 6Gbps SAS 2.5" SFF G2HS HDD 842D0637 5599 IBM 300GB 10K 6Gbps SAS 2.5" SFF Slim-HS HDD 890Y8877 A2XC IBM 300GB 10K 6Gbps SAS 2.5" SFF G2HS HDD 8