!SSDのへりぐあい？ MacBook PROにさして，半年強のSSD． 特に気にすることもなく， 各種gccをビルドしたり， VMWareFusion上でWindows動かしてWebPackで合成したり， platexをたくさん実行したり， プログラムデバッグ用に大量のログを吐いたり， していたので，たまに減りが気になってはいた． うーん，ちょっとだけ減ってはいるのかな． ::システムプロファイルの結果 INTEL SSDSA2M160G2GC： 容量： 160.04 GB（160,041,885,696 バイト） 機種： INTEL SSDSA2M160G2GC リビジョン： 2CV102HA シリアル番号： CVPO9293009T160AGN ネイティブ・コマンド・キューイング： はい キューデブス： 32 リムーバブルメディア： いいえ 取り外し可能ドライブ： いいえ BSD 名： disk0 パーティションマップのタイプ： GPT（GUID パーティションテーブル） S.M.A.R.T. 状況： 検証済み ボリューム： MacOSX： 容量： 159.7 GB（159,697,911,808 バイト） 空き領域： 57.42 GB（57,422,700,544 バイト） 書き込み可能： はい ファイルシステム： HFS+（ジャーナリング） BSD 名： disk0s2 マウントポイント： / ::smartctlの結果 smartctl 5.39 2009-12-09 r2995 [i386-apple-darwin10.2.0] (local build) Copyright (C) 2002-9 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: INTEL SSDSA2M160G2GC Serial Number: CVPO9293009T160AGN Firmware Version: 2CV102HA User Capacity: 160,041,885,696 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 T13 1532D revision 1 Local Time is: Fri Feb 19 14:30:04 2010 JST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 1) seconds. Offline data collection capabilities: (0x75) SMART execute Offline immediate. No Auto Offline data collection support. Abort Offline collection upon new command. No Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 1) minutes. Conveyance self-test routine recommended polling time: ( 1) minutes. SMART Attributes Data Structure revision number: 5 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 3 Spin_Up_Time 0x0020 100 100 000 Old_age Offline - 0 4 Start_Stop_Count 0x0030 100 100 000 Old_age Offline - 0 5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 641 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 486 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 26 225 Load_Cycle_Count 0x0030 200 200 000 Old_age Offline - 38242 226 Load-in_Time 0x0032 100 100 000 Old_age Always - 8873 227 Torq-amp_Count 0x0032 100 100 000 Old_age Always - 1 228 Power-off_Retract_Count 0x0032 100 100 000 Old_age Always - 3425985169 232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0 233 Media_Wearout_Indicator 0x0032 099 099 000 Old_age Always - 0 184 End-to-End_Error 0x0033 100 100 099 Pre-fail Always - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] Note: selective self-test log revision number (0) not 1 implies that no selective self-test has ever been run SMART Selective self-test log data structure revision number 0 Note: revision number not 1 implies that no selective self-test has ever been run SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay.