Ngo Nhan: "Tiep Quan Phai Biet Dong Lenh"
Trong bai truoc, chung toi mo ta thiet ke Hub-Spoke cua xGrid. Nang luc manh nhat trong do la bat ky Spoke nao cung co the tiep quan de tro thanh Hub moi — mang di, cam dien, tiep quan tai cho.
Phan ung theo ban nang cua nhieu nguoi sau khi doc xong la: "Vay toi can mot chiec laptop, biet go dong lenh moi van hanh duoc?"
Khong.
Tai hien truong tham hoa, nguoi thuc hien viec tiep quan rat co the khong phai ky su, ma la dieu duong, ky thuat vien cap cuu, hoac chi huy hien truong. Thu ho co trong tay la may tinh bang, khong phai laptop.
Vi vay, viec tiep quan cua xGrid khong phai "mot lenh danh cho ky su". No la mot thiet ke truy cap phan tang.
Ba Tang Truy Cap: Do Phuc Tap Do Nguoi Dung Quyet Dinh
Cung mot nang luc "tiep quan" cung cap ba loi vao voi ba do sau khac nhau:
- Tang sau nhat, danh cho ky su va quan tri he thong: kiem soat chi tiet va chan doan.
- Tang giua, danh cho nguoi van hanh nang cao: co the kich hoat bang lap trinh.
- Tang tren cung, danh cho bat ky ai: nhan mot nut tren man hinh.
Moi tang deu co co che bao ve rieng — cham nham phai xac nhan lai, tranh nhan lap, tu choi neu trang thai khong dung, bao ve khi qua thoi gian cho, va toan bo thao tac la "thanh cong toan bo hoac quay ve nguyen trang toan bo", se khong mac ket o trang thai do dang.
Y nghia cua ba tang la: do phuc tap cua thao tac do nguoi dung quyet dinh, khong phai do he thong ap dat. Ky su co the kiem soat chi tiet; dieu duong chi can nhan mot nut. Cung mot nang luc, ba kieu nguoi deu dung duoc, moi nguoi lay theo nhu cau cua minh.
Tu Khong Den Tiep Quan: Quet Ma La Dung
Ben canh moi may deu dan mot the ket noi ep plastic. Tren the co hai ma QR: mot ma quet vao se ket noi mang khong day cua may nay, mot ma quet vao se mo he thong. Khong can nhap ten mang va mat khau thu cong, cung khong can nho bat ky dia chi nao.
Binh thuong, may tinh bang cu the ket noi va van hanh voi may gan nhat. Khi Hub thuc su mat ket noi, dau man hinh se tu dong hien canh bao do: "Hub offline, ban co muon tiep quan khong?"
Nguoi van hanh nhan "Nang cap thanh Hub", hop thoai xac nhan hien ra, sau khi xac nhan man hinh hien "Dang tiep quan, vui long doi...". Mot lat sau trang tai lai, va may nay tro thanh Hub moi, mang theo toan bo du lieu benh nhan cua khong lau truoc do.
Toan bo qua trinh khong can dong lenh. Khong can laptop. Khong can nho bat ky lenh nao.Phat Hien Tu Dong, Khong Phai Thao Tac Thu Cong
Chu y lua chon thiet ke nay: khong phai giau mot nut "nang cap" trong menu de nguoi dung tu di tim. Ma la khi Hub thuc su mat ket noi, canh bao tu dong hien ra va hoi ban.
Day la co chu dich.
Tiep quan khong phai thao tac thuong ngay, ma la thao tac khan cap. Ban khong muon ai do nhan nut vi to mo — dieu do se khien he thong dot nhien co them mot Hub (split-brain). Vi vay nut chi xuat hien khi can thiet: Hub thuc su offline, va ban thuc su la mot node co the tiep quan.
Hon nua, ngay ca khi that su co nguoi nhan nham, he thong cung se tu sua — Hub cu hon se tu dong nhuong cho khi ket noi lai vao mang.
Thiet ke khong nham lam cho loi khong the xay ra, ma nham lam cho loi sau khi xay ra co the tu dong sua chua.Truy Cap Tang Thap La Phuong An Du Phong, Khong Phai Duong Chinh
Giao dien mot nut o tang tren cung bao phu phan lon cac tinh huong. Trong it truong hop ky su van can truy cap tang thap — kiem thu cuc bo, dien tap, ha mot Hub tro lai thanh Spoke, hoac kiem tra nguyen nhan khi that bai.
Nhung do la phuong an du phong, khong phai duong chinh. Giong nhu may bay co che do lai bang tay — ban mong no khong bao gio phai dung den, nhung no buoc phai co o do.
May Tinh Bang Co The Lam Thao Tac Tang Thap Khong? Co The, Nhung Ban Khong Can
May tinh bang tat nhien cung co the cai cong cu tang thap. Nhung diem mau chot la: ban khong can.
Su ton tai cua truy cap phan tang chinh la de tang thap tro thanh mot lua chon, chu khong phai dieu kien bat buoc. Tai hien truong tham hoa, ban se khong yeu cau dieu duong di cai bat ky cong cu nao. Ban dua co mot tam the: quet mot cai de ket noi mang, quet mot cai de mo he thong, nhan mot nut khi can tiep quan.
Day la triet ly cot loi cua toan bo thiet ke: boc nang luc cua quan tri he thong thanh giao dien ma bat ky ai cung co the van hanh.
Doc them: Rut va Di — Thiet Ke Hub-Spoke Sinh Ra De Mat Ket Noi · "Offline-First" Khong Phai "Chiu Duoc Offline" · Bai Kiem Tra Roi Di — He Thong Cua Ban Co Dam Van Hanh Khi Mat Ket Noi?